Background
Insomnia can be caused by psychiatric and medical conditions, unhealthy sleep habits, specific substances, and/or certain biological factors.
Recently, researchers have begun to think about insomnia as a problem of your brain being unable to stop being awake (your brain has a sleep cycle and a wake cycle—when one is turned on the other is turned off— it can be a problem with either part of this cycle: too much wake drive or too little sleep drive). It’s important to first understand what could be causing your sleep difficulties.
Medical Insomnia Causes
There are many medical conditions (some mild and others more serious) that can lead to this sleeping problem. In some cases, a medical condition itself can cause sleep disorder, while in other cases, symptoms of the condition cause discomfort that can make it difficult for a person to sleep.
Examples of medical conditions that can cause sleeping disorder are:
- Nasal/sinus allergies
- Gastrointestinal problems such as re-flux
- Endocrine problems such as hyperthyroidism
- Arthritis
- Asthma
- Neurological conditions such as Parkinson’s disease
- Chronic pain
- Low back pain
Medications such as those taken for the common cold and nasal allergies, high blood pressure, heart disease, thyroid disease, birth control, asthma, and depression can also cause insomnia.
Sleep apnea is another sleep disorder linked to insomnia. With sleep apnea, a person’s airway becomes partially or completely obstructed during sleep, leading to pauses in breathing and a drop in oxygen levels.
This causes a person to wake up briefly but repeatedly throughout the night. People with sleep apnea sometimes report experiencing insomnia.
What To Do?
If you have trouble sleeping on a regular basis, it’s a good idea to review your health and think about whether any underlying medical issues or sleep disorders could be contributing to your sleep problems.
In some cases, there are simple steps that can be taken to improve sleep (such as avoiding bright lighting while winding down and trying to limit possible distractions, such as a TV, computer, or pets).
While in other cases, it’s important to talk to your doctor to figure out a course of action. You should not simply accept poor sleep as a way of life—talk to your doctor or a sleep specialist for help.
Insomnia & Depression
Insomnia can be caused by psychiatric conditions such as depression. Psychological struggles can make it hard to sleep, insomnia itself can bring on changes in mood, and shifts in hormones and physiology can lead to both psychiatric issues and insomnia at the same time.
It’s important to know that symptoms of depression (such as low energy, loss of interest or motivation, feelings of sadness or hopelessness) and insomnia can be linked, and one can make the other worse. The good news is that both are treatable regardless of which came first.
Insomnia & Anxiety
Most adults have had some trouble sleeping because they feel worried or nervous, but for some it’s a pattern that interferes with sleep on a regular basis. Anxiety symptoms that can lead to insomnia include:
- Tension
- Getting caught up in thoughts about past events
- Excessive worrying about future events
- Feeling overwhelmed by responsibilities
- A general feeling of being revved up or overstimulated
It’s not hard to see why these symptoms of general anxiety can make it difficult to sleep. Anxiety may be associated with onset insomnia (trouble falling asleep), or maintenance insomnia (waking up during the night and not being able to return to sleep). In either case, the quiet and inactivity of night often brings on stressful thoughts or even fears that keep a person awake.
Insomnia & Lifestyle
Insomnia can be triggered or perpetuated by your behaviors and sleep patterns. Unhealthy lifestyles and sleep habits can create insomnia on their own (without any underlying psychiatric or medical problem), or they can make insomnia caused by another problem worse.
Examples of how specific lifestyles and sleep habits can lead to insomnia are:
- You work at home in the evenings. This can make it hard to unwind, and it can also make you feel preoccupied when it comes time to sleep. The light from your computer could also make your brain more alert.
- You take naps (even if they are short) in the afternoon. Short naps can be helpful for some people, but for others they make it difficult to fall asleep at night.
- You sometimes sleep in later to make up for lost sleep. This can confuse your body’s clock and make it difficult to fall asleep again the following night.
- You are a shift worker (meaning that you work irregular hours). Non-traditional hours can confuse your body’s clock, especially if you are trying to sleep during the day, or if your schedule changes periodically.
Insomnia & Food
Certain substances and activities, including eating patterns, can contribute to insomnia. If you can’t sleep, review the following lifestyle factors to see if one or more could be affecting you:
Alcohol is a sedative. It can make you fall asleep initially, but may disrupt your sleep later in the night.
Caffeine is a stimulant. Most people understand the alerting power of caffeine and use it in the morning to help them start the day and feel productive. Caffeine in moderation is fine for most people, but excessive caffeine can cause insomnia. Caffeine can stay in your system for as long as eight hours, so the effects are long lasting. If you have insomnia, do not consume food or drinks with caffeine too close to bedtime.
Nicotine is also a stimulant and can cause insomnia. Smoking cigarettes or tobacco products close to bedtime can make it hard to fall asleep and to sleep well through the night. Smoking is damaging to your health. If you smoke, you should stop.
Heavy meals close to bedtime can disrupt your sleep. The best practice is to eat lightly before bedtime. When you eat too much in the evening, it can cause discomfort and make it hard for your body to settle and relax. Spicy foods can also cause heartburn and interfere with your sleep.
There are many possible chemical interactions in the brain that could interfere with sleep and may explain why some people are biologically prone to insomnia and seem to struggle with sleep for many years without any identifiable cause—even when they follow healthy sleep advice.
Source:https://sleepfoundation.org
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