How to Use a Barometer

Using Atmospheric Pressure and Short-Term Changes for Weather Prediction

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An aneroid barometer
An aneroid barometer
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Getting the weather forecast or current conditions these days is easier than ever and we have become somewhat complacent about it (yawn, yawn). Just check one of the many sites on the internet. One hour from now, no problem. 10 days from now, likewise. If you want conditions and a forecast for a very specific area, such as your home or neighborhood, go with a personal weather station (PWS).

In the old days, tools like the barometer had to be used to anticipate rain or storms in the near future. Your PWS, in fact, has barometric functionality. Electronic pressure sensors measure pressure utilizing a force collector which measures the strain resulting from an applied force over an area. Changes in electrical resistivity of a semiconductor or metal are measured when a mechanical strain is applied. The resulting voltage output may be analog, which can be converted to digital.



What is Atmospheric Pressure?

First, a little conceptual science. Atmospheric pressure (barometric pressure) is just the weight of air at ground level. Consider the concept of water pressure as an analogy. The deeper you get in the water, the more the pressure increases because as you go down, the built-up weight of the water above you increases.

Consider land as being the bottom of your atmospheric sea. Air is actually not weightless although in daily life it seems so. Atmospheric pressure is the weight of the air from the top of the atmosphere straight down to you; a column, if you will. As you might imagine, pressure is lower as you get higher in elevation because there’s less air on top of you.

This pressure measurement is usually made in hectopascals which is in effect a measure of pounds per square inch. On any modern consumer barometer, the measurement will be indicated in either inches or millibars.

Forecasting the Weather With a Barometer

If you have an aneroid device, you’ll need to manually calibrate it. It’s easy; all this entails is adjusting a small screw on the back to set the hand, like on a clock, to match the current barometric pressure where you are. weather.gov is very comprehensive by zip code. Once you’ve done that, it’s all set. Digital barometers do this step for you.

Barometer measurements are either in inches or millibars. Your readings will usually be between 28 and 31 inches, generally measured to the hundredth decimal. However, the number itself isn’t going to help you much. The thing to focus on is which direction the numbers are moving. You’re looking for the change in barometric pressure to forecast the weather. What does this mean? The static numbers that exhibit no indication of rising or falling aren’t very useful. So, you need to keep up with the change.

Aneroid barometers have two hands. One shows the barometric pressure reading The other one is a manual dial that you align with the pressure reading at the time that you take a measurement. This way you can quickly and easily see which direction and how far the needle has moved between your readings.

Digital barometers usually have indications of “rising” or “falling,” and some models even display a graph called a barograph showing earlier readings and trends. This is more helpful and accurate for you, the amateur meteorologist. Instead of having to write down or memorize previous readings, your device does it for you.



A wind/barometer table
A wind/barometer table

Those are the basics of using a barometer. The more you use it, the more adept you will become at understanding weather patterns in your location. Other than just doing it as a hobby, knowing how conditions are changing is very useful for work and outdoor recreational activities.


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The Richard Feynman Learning Method

How to Learn Anything Quickly and Commit it to Memory

Photo of Kelly R. Smith   by Kelly R. Smith

Richard Feynman, physicist
Richard Feynman, physicist
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Richard Phillips Feynman, ForMemRS (Foreign Member of the Royal Society), was an American theoretical physicist who was well known for his classic work in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics, the physics of the superfluidity of supercooled liquid helium, and particle physics for which he proposed the parton model. For contributions to the development of quantum electrodynamics, Feynman received the Nobel Prize in Physics in 1965. For the random layman, he was as well known as Einstein and Hawking. He was a very colorful fellow who had a penchant for his logic and thinking out of the box. If all that isn’t enough, he also came up with his signature learning method, which we will look at here.

The Problem With Traditional Learning Methods

Most people learn by rote, meaning we simply repeat something enough times to memorize it. Next, we are tested on it. The problem is that if we don’t use it, we lose it. It simply doesn’t remain in our memory. Another way is to associate a fact with something else, like using mnemonics to remember someone’s name. So, what’s missing here? These traditional learning methods don’t address understanding a subject.

This is at the core of Feynman’s method. Don’t be that guy that simply spouts jargon. When you really learn something, internalize it, you’ll have acquired a tool that you can use for the remainder of your life. The more you really know, the fewer surprises you will encounter, because most new things will connect to something you already understand.



Feynman’s Learning Technique: 4 Easy Steps

The beauty of this method is its simplicity. Well, that, and the logic of it. You’ll wonder why nobody nailed this sooner. How much can we really commit to memory? Like the limit of human sports endurance, we don’t really know. Someone always moves the goal post.

Step 1. Define your topic and conceptualize teaching it to a child. Start with the topic you want to absorb. Write it down. Then write down everything you know about it, noting any gaps in your knowledge as you imagine explaining to a child, with, say, a sixth grade education. This will ensure that you get it in simple terms.

Step 2. Fill in the gaps in your understanding. If you don’t have gaps after explaining things to your imaginary friend, you’re not doing it right. You are running the risk of being the jargon and trendy catchword phrases-spouting guy. Check other sources. Investigate definitions. Keep it up until you can explain everything in basic terms. Continue to write it down and keep it simple. If you need nerdy terms to explain what you know, you are lacking in flexibility. When someone questions your understanding, you can only regurgitate what it is that you’ve already said.



Step 3. Compile all your notes and simplify them. Now that you’ve got a firm grasp on all the finer points of your topic, re-write them into a single document that you can file away. This isn’t just make-work; this step will aid in understanding and retention. A lot of people find it helpful to keep a permanent binder of all researched topics, ready to review at any time.

Step 4. Put your new expertise to the test. You’ve done the work; it’s time to spread your wings. Find a willing friend and communicate your knowledge of your topic. Encourage questions. Not only will this solidify your knowledge, it will most likely generate further topics of interest.

How Feynman Saw In-Depth Knowledge

Feynman didn’t just wonder about things; he wanted to know what made them tick. Unlike many scientists, he did not embrace jargon-spewing. He put it this way:

“See that bird? It’s a brown-throated thrush, but in Germany it’s called a halzenfugel, and in Chinese they call it a chung ling, and even if you know all those names for it, you still know nothing about the bird. You only know something about people: what they call the bird. Now that thrush sings, and teaches its young to fly, and flies so many miles away during the summer across the country, and nobody knows how it finds its way.”

Richard Feynman

That’s how Feynman saw knowledge. Life is not just an encyclopedia. To really understand something and have that knowledge in usable terms, it is necessary to break it down in simple terms that can be used in real-life ways. He gave us that with the Richard Feynman learning method.


Further Reading


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Photo of Kelly R. SmithKelly R. Smith is an Air Force veteran and was a commercial carpenter for 20 years before returning to night school at the University of Houston where he earned a Bachelor’s Degree in Computer Science. After working at NASA for a few years, he went on to develop software for the transportation, financial, and energy-trading industries. He has been writing, in one capacity or another, since he could hold a pencil. As a freelance writer now, he specializes in producing articles and blog content for a variety of clients. His personal blog is at Considered Opinions Blog where he muses on many different topics.

Chronic Fatigue Immune Deficiency Syndrome

A Debilitating Disease that Might be Transmitted by a Virus

by Kelly R. Smith

A woman suffering in pain
A woman suffering in pain
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Chronic Fatigue Immune Deficiency Syndrome (CFIDS) is believed to be not just one but a collection of diseases that together manifest the primary symptom of persistent, overwhelming, and debilitating fatigue. Of course it is tightly-bound to chronic fatigue syndrome and is also associated with the Chronic Epstein-Barr Virus Syndrome. A newer term is Myalgic encephalomyelitis (ME). Confused yet?

There is an organization known as the National CFIDS Foundation1 has proposed criteria to be used in establishing a positive diagnosis of Chronic Fatigue Deficiency Syndrome. The two major criteria must be satisfied and a number of minor criteria. The two majors are:

  1. New onset of persistent or relapsing, debilitating fatigue or easy fatigability in a person who has no previous history of similar symptoms, that does not resolve with bedrest, and that is severe enough to reduce or impair average daily activity below 50% of the patient’s premorbid activity level for a period of at least 6 months.
  2. Other clinical conditions that may produce similar symptoms must be excluded by thorough evaluation, based on history, physical examination, and appropriate laboratory findings. These conditions include malignancy; autoimmune disease; localized infection (such as occult abscess); chronic or subacute bacterial disease (such as endocarditis, Lyme disease, or tuberculosis), fungal disease (such as histoplasmosis, blastomycosis, or cocci-dioidomycosis), and parasitic disease (such as toxoplas-mosis, amebiasis, giardiasis, or helminthic infestation); disease related to human immunodeficiency virus (HIV) infection; chronic psychiatric disease, either newly diagnosed or by history (such as endogenous depression; hysterical personality disorder; anxiety neurosis; schizophrenia; or chronic use of major tranquilizers, lithium, or antidepressive medications); chronic inflammatory dis-ease (such as sarcoidosis, Wegener granulomatosis, or chronic hepatitis); neuromuscular disease (such as multiple sclerosis or myasthenia gravis); endocrine disease (such as hypothyroidism, Addison disease, Cushing syndrome, or diabetes mellitus); drug dependency or abuse (such as alcohol, controlled prescription drugs, or illicit drugs); side effects of a chronic medication or other toxic agent (such as a chemical solvent, pesticide, or heavy metal); or other known or defined chronic pulmonary, cardiac, gastrointestinal, hepatic, renal, or hematologic disease.


CFIDS Symptoms a Patient Might Experience

Finding a doctor who is well-versed in this condition and understands the diagnosis protocol can be difficult. How can a prospective patient justify her suspicions that she might be afflicted? According to Solve M.E., simply confirm these symptoms:

  • Post Exertional Malaise (PEM). PEM is a prime indicator of ME/CFS. PEM manifests following mental and/or physical exertion. It is described as steadily worsening symptoms that last 24 hours or even longer. Malaise is defined as a condition of overall bodily weakness and/or discomfort, which often marks the onset of a disease and a vague and/or unfocused feeling of mental uneasiness, lethargy, or discomfort.
  • Un-refreshing Sleep. Sleep that is disrupted as well as un-refreshing is another common indication of ME/CFS which is indicated by patients awakening with a tired feeling even following substantial periods of rest, to experience more than usual drowsiness during the daytime, and to have difficulty falling asleep and staying asleep.
  • Concentration Problems. Many ME/CFS patients find concentration issues to be the most serious and debilitating indicator, making things like driving a car problematic. They live with difficulties with attention, concentration, and memory. These symptoms have been linked to problems in ways the brain handles information—in particular the processing speed and complex information processing.
  • Pain. In the past, pain was not thought to be a prime indicator of ME/CFS, but muscle pain, joint pain, and headache are now recognized as common in ME/CFS patients.

It’s very likely that these four major symptoms of ME/CFS are interwoven, each one building on the other and undoubtedly exacerbating the overall illness. This is why doctors who are well-versed in ME/CFS focus on treating pain and sleep disturbances with medicine, in an attempt to give some degree of solace to the severity of the overall ME/CFS symptom complex.



History, Causes, and Methods of Coping with CFIDS

No one is positive exactly when Chronic Fatigue Immune Deficiency Syndrome (or Myalgic encephalomyelitis) first began but it became defined late in the 1970s. This was also about the time when AIDS began its spread. It is not clear precisely what triggers CFIDS. It seems highly likely that it may be caused by a virus, but mysteriously enough, it has yet to be determined how it spreads from individual to individual.

This condition afflicts women in the majority of cases, estimated at 75% to 80% of total cases, so males are in the mix as well. The age range in which it most commonly strikes is 25 to 50. Some of the triggers for CFIDS are thought to be digestive system stress, depression or emotional stress, exposure of the immune system to some toxicity, and an over-work/under-exercise situation. It certainly describes our modern world.

Even though there has been no cure discovered at this point, a point of light is that there are a number of things that are beneficial in the coping process. For example, mild exercise is of great help in most cases. Why? because it allows the blood flow to increase and gives a boost to the the immune system.

The elimination of certain things from your diet may minimize the symptoms. The list includes includes caffeine, alcohol, and highly refined flour and sugar. The last thing to be is a compulsive over-eater.

Another technique to cope with this disease is counseling. Having solid, reliable moral support is a huge asset when one is coping with depression and stress. Using these techniques and working for solutions under a doctor’s care and supervision will keep the patient on the road to good health and reduce the symptoms of Chronic Fatigue Immune Deficiency Syndrome.

You Might Also Enjoy:

Resources

  1. GARY P. HOLMES, M.D., et al., National CFIDS Foundation, Chronic Fatigue Syndrome: A Working Case Definition, https://www.ncf-net.org/patents/pdf/Holmes_Definition.pdf
  2. Solve M.E., About the Disease, https://solvecfs.org/about-the-disease/

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Photo of Kelly R. SmithKelly R. Smith is an Air Force veteran and was a commercial carpenter for 20 years before returning to night school at the University of Houston where he earned a Bachelor’s Degree in Computer Science. After working at NASA for a few years, he went on to develop software for the transportation, financial, and energy-trading industries. He has been writing, in one capacity or another, since he could hold a pencil. As a freelance writer now, he specializes in producing articles and blog content for a variety of clients. His personal blog is at I Can Fix Up My Home Blog where he muses on many different topics.

Running Improves Memory, Brain Cells

Aerobic Exercise Produces the Cathepsin B Protein


by Kelly R. Smith

Running and brain functionality
Running and brain functionality
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Runners might not all consider themselves to be superior to sedentary people but in all fairness, in our heart of hearts we might suspect it. As it turns out, running and other aerobic exercise does elevate us above the masses, at least with respect to health and mental functionality, all other things being equal. Let’s see how that works exactly.

Scientists now believe that running may help boost memory. This is because the aerobic activity produces a protein which boosts brain cell growth. Researchers at the National Institute on Ageing discovered that when our muscles are exercised they produce a protein called cathepsin B. This makes its way to the brain and triggers neuron growth.

Dr. Henriette van Praag, a neuroscientist at the National Institute on Aging says “Overall, the message is that a consistently healthy lifestyle pays off.” The key word to focus on here is consistently. It should come as no surprise that one of the fundamental aspects of this healthy lifestyle is what we eat and drink. It is therefore important to follow a diet for body and brain.

Initial Findings on the Cathepsin B Protein

Praag explains the research this way, “We did a screen for proteins that could be secreted by muscle tissue and transported to the brain, and among the most interesting candidates was cathepsin B. Moreover, in humans who exercise consistently for four months, better performance on complex recall tasks, such as drawing from memory, is correlated with increased cathepsin B levels.”

Of Mice and Men

Praag’s team initially found that the protein increased when they were studying mice that exercised regularly on wheels. The protein level increased in the blood and muscle tissue the more the mice ran. They next found that when cathepsin B was applied to brain cells in their lab it initiated the production of molecules related to neurogenesis, meaning the growth of neurons.

Additionally, they found that the mice that were genetically modified so that they no longer produced the protein performed less well in memory tests. Dr. van Praag concluded, “We also have evidence from our study that cathepsin B is upregulated in blood by exercise for three species—mice, Rhesus monkeys, and humans.”

How can we as runners reap these benefits? Dr van Praag says, “People often ask us, how long do you have to exercise, how many hours? The study supports that the more substantial changes occur with the maintenance of a long-term exercise regimen.”

Exercising on a Regular Basis Helps Reduces Memory Loss

A Number of health experts have believed in the benefits of running or involved in some other fitness regimen for a quite some time now. Elisa Zied, a member of the American Dietetic Association says, “It’s a no brainer, we know that exercise is something everyone should try to incorporate.”

Another study was undertaken at Columbia University Medical Center that also suggested that exercise may elevate a person’s memory capacity. Researchers in that study were the first to track brain cells in a living brain in an attempt to find the exact area that is the most affected by exercise. What they found is that exercise targets the very region that is associated with the unfortunate age-related memory decline that usually starts around the age of 30.

Participants in this study who were consistently physically active performed better on memory tests than were the participants who neglected exercise. Many health and nutrition experts propose that it’s just one more reason to get active. Zied said, “We’ve known for a long time you get this burst of energy and feel-good chemicals when you exercise, so its not that much of a stretch that it is actually going to preserve your mental function as you get older.”

Increased Blood Flow is an Essential Part of the Process

Webmd.com says, “Researchers found that exercise boosts blood flow to a brain area involved in memory—even in people who aren’t in top shape.” This study shows that just three months of physical exercise was all that was needed for people starting with low levels of aerobic fitness to build up the blood flow to that specific part of their brains and increase scores on memory tests.

In yet another study performed at the University of British Columbia researchers found that consistent aerobic exercise seems to increase the size of the hippocampus. This is the region of the brain that is involved in verbal memory as well as learning.

Running Improves Memory Both Directly and Indirectly

From a direct point of view, some of the primary benefits of running come from its capacity to lower insulin resistance, lower inflammation, and stimulate the production and release of growth factors. These chemicals in the brain are at least in part responsible for the healthy maintenance and operation of brain cells, the growth of new blood vessels internally in the brain as well as regulating the number of, and survival of, new brain cells.

But from an indirect point of view, a regular fitness routine has been shown to improve your mood and regenerative, restful sleep as well as reducing your levels of stress and anxiety. Problems in these areas often cause or contribute to cognitive impairment.

A number of other studies suggest that the regions of the brain that are responsible for controlling thinking and memory (specifically the prefrontal cortex and medial temporal cortex) have a larger volume in individuals that are runners as opposed to those who are not.

In a nutshell, if you are a runner, you are doing a lot more for yourself than just keeping the weight off. If you are not a runner, why not start? We can all use an improved memory, and more brain cells as we age.

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About the Author:

Photo of Kelly R. SmithKelly R. Smith is an Air Force veteran and was a commercial carpenter for 20 years before returning to night school at the University of Houston where he earned a Bachelor’s Degree in Computer Science. After working at NASA for a few years, he went on to develop software for the transportation, financial, and energy-trading industries. He has been writing, in one capacity or another, since he could hold a pencil. As a freelance writer now, he specializes in producing articles and blog content for a variety of clients. His personal blog is at I Can Fix Up My Home Blog where he muses on many different topics.

Is Scientology a Cult or a Religion?

by Kelly R. Smith

One of many Scientology churches
One of many Scientology churches
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Scientology was the brainchild of the charismatic leader and science fiction writer L. Ron Hubbard started in 1952. It has been classified as a religion by the United States and the United Kingdom governments for tax purposes. However, Germany calls it an “anti-constitutional sect” and France has labeled it a “dangerous cult” as have many parts of the United States. A looser definition that is sometimes used is a New Religious Movement (NRM), defined as a religious, ethical, or spiritual group or community with relatively modern origins. But is Scientology a cult or a true religion? Where is the dividing line? Does it fall somewhere in the middle, a secret society like the Illuminati?

What Is a Cult?

A sociologist will tell you that a cult is a small group of individuals without a distinctive authority structure, usually led by a charismatic leader or a small group of leaders, and who derive their cause and ideology from outside of, and counter to, the more broadly-accepted religious and social culture. However, in layman’s terms, a cult is a manipulating and authoritarian organization that likely uses mind control to recruit members, keep them in line, and poses a threat to mental health to the flock.

The term “cult” has been used broadly to refer to groups such as Scientologists, Obama’s shadow government, Satanists, Mormons, Druids, The Peoples Church, the KKK, the Manson Family, Antifa, Pagans, Southern Baptists, Roman Catholics, Trekkies, and Pokemon Go players. The term is broad enough to include both dangerous types and mere enthusiasts.

Cults and New Religious Movements

One problem with the term “cult” is that it has such a negative, and to some people, dangerous and frightening connotations. This is why sociologists have dropped the term and now refer to non-traditional religious sects such as Scientology New Religious Movements (NRMs).

Scientology does not exhibit some of the most common characteristics of a truly dangerous cult. In particular, the presence of a beloved, still-living founder; a relatively small and easily controlled number of followers; and a disturbing history of murders or suicides at the command of the leader. However, there is disturbing concern over the amount of control the church possesses, and its constant legal trouble can be seen as a red flag.

Leah Remini, ex-Scientologist discusses growing up in the church

Scientology and Characteristics of Dangerous Cults

  • Ruled by One Charismatic leader. Scientology was created by one charismatic man, science fiction writer L. Ron Hubbard. His originally intended it to be a branch of science, but that didn’t catch on so he switched his focus to a religious movement. He died in 1986, and the current head of the Church of Scientology, David Miscavige took over. He maintains all the power and control over the money. He has a reputation as being abusive and tyrannical often losing his temper and physically attacking members of his staff.
  • Complete Control Over Church Members. One of the ways it does this is the policy of disconnection. But what is it? Mike Rinder says in his blog1, “There IS policy of the church of scientology that REQUIRES someone to disconnect from anyone declared by HCO as a Suppressive Person. HCOB 10 September 83 PTSNess and Disconnection states the following: ‘To fail or refuse to disconnect from a suppressive person not only denies the PTS (person connected to a Suppressive Person) case gain, it is also supportive of the suppressive – in itself a Suppressive Act. And it must be so labeled.‘” In a nutshell, if the Church finds disapproval with a person, the Church member must disconnect association, be it a family member, coworker, or other.
  • The Commission of Felonies. Many legal accusations have been directed at the Church over the years, and many have resulted in felony convictions, for example, in connection with Operation Snow White, which included theft of government documents. Through The Looking Glass says2, “Operation Snow White was a criminal conspiracy by the Church of Scientology during the 1970s to purge unfavorable records about Scientology and its founder, L. Ron Hubbard. This project included a series of infiltrations into and thefts from 136 government agencies, foreign embassies and consulates, as well as private organizations critical of Scientology, carried out by Church members in more than 30 countries.” The most common accusations are fraud, extortion, and harassment, although other accusations such as kidnapping and negligent homicide have also been leveled.
  • Communal Living. Many Church members live in special Church-owned facilities (presumably for more control). There are groups in Scientology (notably Sea Org) that often have semi-communal arrangements in which families may be kept separated. Former employees have reported that they worked long hours, were paid very little, and were actively discouraged from having families.


  • Punishment for Defection or Criticism. According to Learn Religions3, “Defection and criticism can lead to one being labeled a suppressive person from whom other members should disconnect. SPs can become targets of harassment through the church’s ‘fair game’ doctrine. Established by L. Ron Hubbard in the 1950s, the ‘fair game’ doctrine states that anyone identified as an opponent may be deprived of property or injured by any means by any Scientologist without any discipline of the Scientologist. Scientology has sued several of its former members; defectors are shunned or ‘disconnected.’ According to the church and former members, leaving is a lengthy process that can take months. The church requires that the leaving members pay ‘freeloader’ bills—former members report bills of tens of thousands of dollars—and sign affidavits which are drawn up by the officials.”
  • Large Donations are a Way of Life. As soon as they join, members are required to pay large donations for their coursework. This money must be paid up front, not-pay-as-you-go. Next, members are highly-encouraged to use these services since they are a fundamental way of achieving the goals of Scientology. Then there are ongoing requests for still more donations for projects and new buildings.

So, is Scientology a cult or a religion? Given how broad the definitions are, there is a lot of gray area. We do know that they don’t believe in Jesus or any other earthly prophet. Instead, they believe in the Overlord Xenu who headed the Galactic Federation, which was an organization of 76 planets. They do believe in reincarnation (hence, the billion-year contract they sign).


References

  1. Mike Rinder, Scientology Disconnection, https://www.mikerindersblog.org/scientology-disconnection/
  2. The Infomaniac, Through The Looking Glass, OPERATION SNOW WHITE: How Scientology Was Behind the Largest Infiltration of the US Government, https://throughthelookingglassnews.wordpress.com/2017/12/02/operation-snow-white-how-scientology-was-behind-the-largest-infiltration-of-the-us-government-in-history-besides-israel-with-5000-under-cover-agents/
  3. Catherine Beyer, Learn Religions, Is Scientology a Cult?, https://www.learnreligions.com/is-scientology-cult-95820

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About the Author:

Photo of Kelly R. SmithKelly R. Smith is an Air Force veteran and was a commercial carpenter for 20 years before returning to night school at the University of Houston where he earned a Bachelor’s Degree in Computer Science. After working at NASA for a few years, he went on to develop software for the transportation, financial, and energy-trading industries. He has been writing, in one capacity or another, since he could hold a pencil. As a freelance writer now, he specializes in producing articles and blog content for a variety of clients. His personal blog is at I Can Fix Up My Home Blog where he muses on many different topics.

Blue Light, Eye Health, and Sleep

More Evidence is Showing Up About the Relationship Between Device Screens and Our Health

Photo of Kelly R. Smith   by Kelly R. Smith

Anti-blue-light glasses protect eye health
Anti-blue-light glasses protect eye health
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This article was updated on 04/16/21.

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You might have recently been hearing more about the effects of blue light on your eyes and sleep patterns. As we live longer, the more chance there is of our health being affected. Blue Light is the visible light located at the blue end of the light spectrum. Although not as energetic as ultraviolet (UV) light, there is some concern that high levels of blue light might cause more damage at the cellular level than longer wavelengths of visible light, which you perceive as the colors of red through green. Exposure to blue light is thought to have an impact on your sleep-wake cycle, compounding the problem with Coronavirus pandemic dreams.

Sources of Blue Light

Blue light occurs naturally. This is not really a concern. Where it gets troubling is adding in the light emitted from LED lights, cell phones, television sets, tablets, and laptop computers. Studies suggest that 60% of people spend more than 6 hours a day in front of a digital device (or near certain lights) so what did not used to be an issue is suddenly the elephant in the room.

Outside, light from the sun travels through the atmosphere. As it does, the shorter, high energy blue wavelengths collide with air molecules causing blue light to scatter everywhere. This is why the sky is blue. Interesting, yes?

Blue Light and Your Sleep

In its natural form, your body takes advantage of blue light from the sun to regulate your natural sleep and wake cycles.  This is called your circadian rhythm.  This light also helps boost alertness, heighten reaction times, elevate moods, and increase the feeling of well being, rather than experiencing mood swings. In the wintertime, when the period of sunshine is reduced, some people suffer from seasonal affective disorder (SAD). This is a type of depression that’s related to changes in seasons. SAD begins and ends at about the same time every year. If you’re like most people with SAD, symptoms begin in the fall and continue through the winter months, sapping your energy and making you feel moody and glum.

Chronic exposure to blue light at night (binging on Netflix, gaming, social media) can lower the production of melatonin, the hormone that regulates sleep, and disrupt your circadian rhythm. You can’t be expected to withdraw from activities altogether, but over-the-counter melatonin supplements are quite inexpensive.

Blue Light and Your Eyesight

Blue light waves are some of the shortest, highest energy wavelengths in the visible light spectrum.  Since they are shorter, these blue, or High Energy Visible (HEV) wavelengths, flicker more than the longer, weaker wavelengths. This kind of flickering creates a glare that can reduce visual contrast and affect sharpness and clarity.

Your eyes’ natural filters don’t provide as much protection against blue light rays from the sun as we would like, of course. The same is true of your devices or from blue light emitted from fluorescent-light tubes. Prolonged exposure to blue light is thought by some researchers to be likely to result in damage to your retinas and contribute to age-related macular degeneration, which can lead to loss of vision. Opinions differ about the likelihood of this, but why take the chance?

How You Can Protect Your Eyes

Do what I do — wear anti blue light glasses. I wear them at the computer. They are inexpensive and give the screen a pleasant tint. My regular glasses have a coating that helps when I walk, run, or drive.

That’s the effect of blue light exposure on eyes and sleep. Welcome to the modern world. Please participate in the poll on the right-hand side of this page. I want to get a better feel about how others feel about blue light.

Further Reading



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About the Author:

Photo of Kelly R. SmithKelly R. Smith is an Air Force veteran and was a commercial carpenter for 20 years before returning to night school at the University of Houston where he earned a Bachelor’s Degree in Computer Science. After working at NASA for a few years, he went on to develop software for the transportation, financial, and energy-trading industries. He has been writing, in one capacity or another, since he could hold a pencil. As a freelance writer now, he specializes in producing articles and blog content for a variety of clients. His personal blog is at Considered Opinions Blog where he muses on many different topics.

Prebiotics, Probiotics, and Synbiotics; What Does It All Mean?

by Kelly R. Smith

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The health benefits of probiotics
The health benefits of probiotics

This article was updated on 10/26/20.

Everywhere we turn nowadays we hear about probiotics. But what about prebiotics and synbiotics? Actually, they all work hand in hand. Here’s the rundown.

  • Probiotics. WebMD says, “Probiotics are live bacteria and yeasts that are good for you, especially your digestive system. We usually think of these as germs that cause diseases. But your body is full of bacteria, both good and bad. Probiotics are often called ‘good’ or “helpful” bacteria because they help keep your gut healthy.” When you lose the “good” bacteria that inhabit your gut, after you take antibiotics for example, probiotics can help replace them. The two main types are lactobacillus and bifidobacterium. You can get them through dairy and supplements.
  • Prebiotics. The Mayo Clinic tells us, “Prebiotics are specialized plant fibers. They act like fertilizers that stimulate the growth of healthy bacteria in the gut.” They are found in a variety of fruits and vegetables, mostly those that are rich complex carbohydrates, such as fiber and resistant starch. These carbs aren’t digestible by your body, so they pass through the digestive system to become food for the bacteria and other microbes. When your balance is off it can affect your metabolism.
  • Synbiotics. ScienceDirect says, “Synbiotics are a combination of prebiotics and probiotics that are believed to have a synergistic effect by inhibiting the growth of pathogenic bacteria and enhancing the growth of beneficial organisms.” Evidence suggests that synbiotics influence the microbial ecology in our intestines. This is true in both humans and animals and synbiotics play a role in alleviating various illnesses.

Knowing what we know about prebiotics, probiotics, and synbiotics it becomes clear that we should maintain our diet with various types of foods in mind, organic whenever possible. This includes milk, cheese, fermented foods like kimchi and kombucha, whole grains, miso, fruits, and vegetables.

Benefits of Probiotics

  • Improves immune function. They assist in the treatment and/or prevention of many common conditions. Some of these include diarrhea, irritable bowel syndrome, ulcerative colitis, and Crohn’s disease.
  • Protects against hostile bacteria to prevent infection. Under normal (balanced) conditions, your friendly bacteria in your gut outnumber the unfriendly ones. Probiotics stand duty as gut-beneficial bacteria that create a physical barricade against legions of unfriendly bacteria.
  • Improves digestion and absorption of food and nutrients.
  • Counters the negative effects of antibiotics. When you contract a bacterial infection, antibiotics are most often prescribed to as the immediate solution. That’s a Godsend, but unfortunately, nothing good comes free, and antibiotics kill bacteria arbitrarily, decimating both good and bad bacteria in your intestinal tract. By eliminating beneficial bacteria, your body is susceptible to a number digestive issues. Myself, when I go to the grocery store to have an antibiotic prescription filled, I also stock up on yogurt with active cultures.
  • Boosts heart health.
  • Lowers cholesterol. Probiotics contain bacteria that are effective in lowering total and LDL (bad) cholesterol. Taylor Francis Online says, “Numerous clinical studies have concluded that BSH-active probiotic bacteria, or products containing them, are efficient in lowering total and low-density lipoprotein cholesterol.”

Others are reading:

References


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About the Author:

Photo of Kelly R. SmithKelly R. Smith is an Air Force veteran and was a commercial carpenter for 20 years before returning to night school at the University of Houston where he earned a Bachelor’s Degree in Computer Science. After working at NASA for a few years, he went on to develop software for the transportation, financial, and energy-trading industries. He has been writing, in one capacity or another, since he could hold a pencil. As a freelance writer now, he specializes in producing articles and blog content for a variety of clients. His personal blog is at I Can Fix Up My Home Blog where he muses on many different topics.

Melatonin Uses, Side Effects, Dosage, Benefits

by Kelly R. Smith

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Waking after a restful melatonin sleep
Waking after a restful melatonin sleep

Melatonin (5-Methoxy-N-Acetyltryptamine, MEL, Melatonina, Mélatonine, MLT, N-acetyl-5-methoxytryptamine, etc.) is a hormone that your brain produces in response to darkness. It helps with the timing of your circadian rhythms (24-hour internal clock) and with sleep. Being exposed to light at night can block melatonin production. It’s hard to experience lucid dreaming if you’re busy counting sheep.

It is most commonly bandied about a cure for insomnia although other benefits are also being investigated. Although we would all like to think that melatonin is a panacea for all number of things, it is a bit more complicated, like using UV light to kill COVID-19 virus is.

Common Uses for Melatonin

  • Promoting regular, satisfying sleep. As mentioned above, some people take melatonin in pill form by mouth seeking to adjust their body’s internal clock. It is most commonly used for insomnia and improving sleep in different situations. For example, it is used for jet lag, for adjusting sleep-wake cycles in people whose daily work schedule changes (shift-work disorder), and for helping people establish a day and night cycle.
  • Coronavirus disease 2019 (COVID-19): At this time there is no research-based evidence to support using melatonin for COVID-19. That being said, people will latch onto rumors of efficacy.
  • Non-24-hour sleep wake disorder. Taking melatonin just at bedtime is reputed through anecdotal evidence to improve sleep in persons who are blind. We’ve all seen that commercial on TV.
  • Combating medications that lower melatonin levels. Some prescriptive drugs such as beta-blocker drugs for high-blood pressure, such as atenolol and propranolol, are a class of drugs that seem to lower melatonin levels. Supplementing is thought to replace them.
  • Relief for painful uterine disorder (endometriosis). There is anecdotal evidence that taking melatonin daily over an 8 week period seems to reduce the pain and associated painkiller use in women experiencing endometriosis. It also reduces pain during menstruation, intercourse, and while going to the bathroom.
  • Jet lag. Some research reveals that melatonin can significantly improve certain symptoms of jet lag including alertness and movement coordination. It also seems to slightly improve other jet lag symptoms like daytime sleepiness and tiredness. However, melatonin might not be as effective for lowering the time it takes for people with jet lag to fall asleep.

Side Effects

  • Interfering with pregnancy. A melatonin supplement may be unsafe for women when taken by mouth or injected into her body frequently and/or in high doses when she is trying to become pregnant. Melatonin might have effects similar to birth control. This might make it more difficult to become pregnant.
  • Breast-feeding. The jury is still out. When in doubt, err on the side of caution.
  • Interactions with prescription medication. Always consult with your doctor if you are taking medications such as blood pressure medication.
  • Daytime sleepiness. There’s a reason it’s for sleep. Some might take it during the day as a “calm-down” measure but this is not recommended. But even when taking it at bedtime, Healthline.com says, “sleepiness is a possible problem in people who have reduced melatonin clearance rates, which is the rate at which a drug is removed from the body.”
  • Decreased body temperature. Melatonin causes a slight drop in body temperature. While this is generally not a problem, it could make a difference in people who have difficulty keeping warm.
  • Blood thinning. It may also cause a reduction in blood coagulation. Because of that, you should speak with your doctor prior to taking high doses of it with warfarin or other blood thinners.

Dosage

With regards to adults, the standard dosage used in studies ranges between 1 and 10 mg, but there isn’t currently a definitive “best-case” dosage. It’s widely believed that doses in the 30-mg range may be harmful. As an example, I take just 10 mg and sleep like a baby.

In fact, taking too much supplementary melatonin can actually disrupt your circadian rhythm (also called your sleep-wake cycle), and further disrupt what you are trying to deal with.

Bottom line? Melatonin uses, side effects, dosage recommendations, and benefits are important to know about before you go tinkering with your sleep patterns. Its use can be a Godsend in the right situation.


References:


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About the Author:

Photo of Kelly R. SmithKelly R. Smith is an Air Force veteran and was a commercial carpenter for 20 years before returning to night school at the University of Houston where he earned a Bachelor’s Degree in Computer Science. After working at NASA for a few years, he went on to develop software for the transportation, financial, and energy-trading industries. He has been writing, in one capacity or another, since he could hold a pencil. As a freelance writer now, he specializes in producing articles and blog content for a variety of clients. His personal blog is at I Can Fix Up My Home Blog where he muses on many different topics.

Endure: Mind, Body, and the Curiously Elastic Limits of Human Performance

A Book Review

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At first glance, this book by Alex Hutchinson would seem to be just another running book. After all, that’s what the cover photo shows. But in reality the book examines the slippery nature of endurance by looking not only at running, but also mountain climbers, skiers, cyclists, free diving, and more. Regardless of the activity, the boldest among us continue to push the known boundaries of endurance.

Is There a Limit to Endurance?

This is the central question of the book. It turns out that endurance is analogous to nutrition; every day it seems some “qualified person” comes up with the latest and greatest theory. Case closed; mystery solved. Well, until the next day. Then someone comes along and changes the game; moves the marker.

New records are constantly being set, from 25-year-old medical student Roger Bannister’s 4-minute mile to Eliud Kipchoge of Kenya setting a new world marathon record in Berlin. He ran an amazing time of 2:01:39. Ask anyone who is a distance runner; this time is phenomenal under any circumstance. Kipchoge says, “It’s not about the legs; it’s about the heart and the mind.”

He’s on to something there and that is precisely what this book explores. We can talk about physiology all day long but there is something else going on here. The real issue is that the “something” is so hard to quantify.

This book is a must-read (or in all honesty a must-listen since I listened to the audible.com release on my long runs) for any of us weekend warriors who are looking for a little bit more inspiration. The latest nutritional supplement may give us an edge or not but is it real or a placebo effect? Does it matter? You decide.


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