Insomnia – Symptoms, Causes, Myths

Sleep Depredation Adversely Affects Your Body, Brain, Mood, Cognitive Function

Photo of Kelly R. Smith   by Kelly R. Smith
Sleep deprivation -- asleep at the wheel
Sleep deprivation — asleep at the wheel
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What is insomnia? Insomnia is a very common sleep disorder. It makes it hard to drift off to sleep, difficult to stay asleep, or lead you to waking up too early and not being able to get back to sleep. It is not uncommon to still feel tired after you wake up. Insomnia can diminish not only your energy level and your mood but also your health, work performance, and your quality of life.

How many people suffer and what is the probable cause? The Mayo Clinic says, “At some point, many adults experience short-term (acute) insomnia, which lasts for days or weeks. It’s usually the result of stress or a traumatic event. But some people have long-term (chronic) insomnia that lasts for a month or more. Insomnia may be the primary problem, or it may be associated with other medical conditions or medications.”1 Some cases may be associated with the COVID-19 pandemic isolation.

What causes insomnia?

Symptoms of Insomnia

  • Waking up too early
  • Increased errors or accidents at work and at home
  • Difficulty falling asleep at night
  • Waking up in the night
  • Not feeling well-rested after a night’s sleep
  • Difficulty paying attention consistently, focusing on tasks, or remembering things
  • Ongoing worries and concerns about your sleep
  • Daytime tiredness or sleepiness (nodding off at your desk, or worse, in your car)
  • Irritability, depression, confusion, or anxiety

Causes of Insomnia

This is not a one-size-fits-all ailment. It may just be happening on its own, other conditions can contribute to it, or be the primary cause. Medical treatment can be elusive as well. Melatonin can help. Treating the underlying cause may resolve your insomnia, but on the other hand, it can last for years. Possible causes include:

  • Travel or work schedule. Circadian rhythms function as an internal clock, managing such things as your sleep-wake cycle, metabolism, and your core body temperature. Disrupting these circadian rhythms can well result in a case of insomnia. Causes include jet lag from traveling across multiple time zones, exposure to too much blue light, working a late or early shift, or often changing shifts.
  • Eating too much too late. Having a light snack before bedtime is just fine, but compulsive overeating may cause you to feel physically uncomfortable while lying down. You might also experience heartburn, a nauseating backflow of acid and food from your stomach into your esophagus following eating, which can leave you wide awake.
  • And of course, Stress. Concerns about your work, grades at school, health, financial situation, or family circumstances can keep your mind alert during the night, making it difficult to sleep. Stressful life events or trauma like the death or illness of someone close to you, a pending divorce, or a job issues are recognized causes of insomnia.

Myths Regarding Insomnia

Like other medical conditions, there are pervasive myths about this one. WebMD2 has put together a list of the more common ones.

  • A drink will help you sleep. This myth probably persists because drinking alcohol can help you fall asleep. But as it moves through your body it may lead to disturbed, restless sleep, or it may make you wake earlier.
  • Insomnia Is strictly mental. It’s true that psychological issues can cause insomnia. As a matter of fact, stress is the No. 1 reason people report a lack of sleep. But it’s not the only insomnia trigger. Many things can cause insomnia, including poor sleep hygiene, illness, drug side effects, chronic pain, restless legs syndrome, or sleep apnea.
  • Screen time winds you down. You might want to try to wind down by reading on the computer or perusing TV before retiring, but that can actually stimulate you. The blue light and noise of TVs and computers can be overwhelming at a low level and can reduce brain melatonin levels. You want your melatonin levels to increase around bedtime to help you fall asleep. Need just a little noise to help you drift off? Try listening to relaxing music or download a relaxing, sleep app.
  • Sleep aids = risk-free. Yes, today’s sleeping pills are safer and much more effective than the older variety. But all meds have potential downsides, including dependency. Always talk to your primary care doctor before you reach for sleeping pills. Some help relieve insomnia symptoms temporarily but by themselves they can’t banish insomnia permanently. Fixing underlying health problems and fixing your sleep environment is usually the surest approach to insomnia.
  • I’ll just make up for lost sleep. Nope, it’s unlikely that you can really catch up on sleep you’ve mislaid. In fact, sleeping in one or two days per week or during the weekend may upset your natural body clock. The disruption may make it harder to get to sleep the next time. The only sure method to make up on your lost sleep is to get right back into a consistent sleeping schedule.
  • A nap will help offset insomnia. Naps are lovely, aren’t they? They affect everyone differently. For some, a short 10- to 20-minute cat nap siesta can be refreshing and put fuel in the old metaphorical tank. For people with insomnia, however, an afternoon snooze will decrease the brain’s sleep drive.
  • You can teach yourself to need less sleep. Believing this hocus-pocus can end you up with some serious consequences. We are all born with a fixed sleep need. Most adults fall into the 7-8 hour category. While you can learn to get by on less, you can’t teach your body to need less sleep. If you find yourself sleep deprived, it’s much more difficult to pay attention and remember things both important and trivial. Being consistently tired has some serious consequences. These include lowered work performance, a higher risk of mishaps, and of course, poor health.

If you have insomnia (as I occasionally do, by the way), don’t worry; you are not alone. Just knowing and understanding these insomnia symptoms, causes, and myths will go a long way towards understanding your condition and finding a solution that works for you. Me? I do just fine with late night melatonin and using blue light blocking glasses as I labor at my computer screen all day.

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  1. The Mayo Clinic, Insomnia,
  2. WebMD, Insomnia Myths and Facts,

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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.


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