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Causes of Insomnia: What Causes Insomnia? Insomnia Causes Explained

Causes of insomnia include both medical and psychiatric conditions, specific substances, unhealthy living and sleeping habits, and certain biological factors. Most recent researchers consider insomnia to be a result of the brain being unable to fall asleep. Therefore, it is always crucial to understand and define what the particular insomnia cause is in your particular case.

What Causes Insomnia?

Insomnia Causes

Various Causes of Insomnia

The most common things that can cause insomnia are:

  • Stress and stressful life events
  • Anxiety
  • Depression and other mental health disorders
  • Medical conditions such as chronic pain, need to urinate frequently, breathing difficulties, arthritis, heart failure, lung disease, cancer, GERD, stroke, etc.
  • Change in environment and schedule (traveling, working late)
  • Poor sleeping habits such as irregular sleep schedule, uncomfortable sleep environment
  • Medications including some antidepressants, allergy medications, blood pressure medications, stimulants, and corticosteroids.
  • Caffeine
  • Nicotine and alcohol
  • Eating late in the evening. Eating in big quantities before sleep time can cause insomnia and even heartburn.

Insomnia is more bound to happen as a result of aging. As people get older, changes in sleep patterns may occur. Sleep is often disturbed and restful as we age and with the internal clock advancing, people start feeling tired earlier than before. Additionally, there is the chronic pain of health issues that develop as a result of aging that creates insomnia. These include sleep apnea or restless legs syndrome.

These reasons can be split into a few groups: medical and psychiatric causes.

Medical causes of insomnia

There is a grand variety of medical conditions that can lead to insomnia. In some cases, there is one medical condition that can cause this disorder, but in others, the symptoms of it are the main reason for the sleeping difficulties.

The following medical conditions can cause insomnia:

  • Gastrointestinal problems
  • Nasal allergies
  • Arthritis
  • Endocrine health problems
  • Asthma
  • Chronic pain
  • Neurological conditions
  • Back pain

Additionally, many of the medications commonly prescribed for the symptoms of these diseases can also cause insomnia. These include medications for common allergies, high blood pressure, thyroid disease, heart disease, asthma, birth control, and depression.

Another cause of insomnia is underlying sleep disorders such as restless leg syndrome. This is a neurological condition that occurs when people have the constant uncomfortable sensation of needing to move the legs. This syndrome worsens in later parts of the day due to inactivity in the transition to sleep. Therefore, this underlying symptom adds up to insomnia issues.

Another sleep disorder that can be linked to insomnia is sleep apnea. When one suffers from this disorder, the airway becomes obstructed during the sleep. This can lead to a drop in oxygen levels and trouble breathing. The person can wake up repeatedly throughout the night and have difficulties sleeping. People with this disease often experience insomnia because of their irregular sleeping habits.

Psychiatric insomnia causes

Insomnia can be caused by many psychiatric conditions, including depression. Psychological issues can make a person find difficulty in sleeping. Insomnia can also bring a shift in hormones and mood changes which only add to the psychological issues at the same time.

Sleep deprivation is a common depression symptom, so this psychological condition is often connected to the disorders. Studies show that insomnia can even worsen the depression symptoms.

Depression and insomnia are linked on many levels. Aside from their effect on each other, their symptoms are also interconnected. These include:

  • Loss of interest
  • Low energy
  • Feeling of sadness

The good thing here is that both these conditions can be treated, regardless of which one caused the other one.

Another psychological condition linked to insomnia is anxiety. There are many people who have reported that anxiety is their main cause of insomnia. People often find it difficult to fall asleep because of worries, but some even see this as a pattern that ruins their sleep on a regular basis.

Anxiety can really add up to insomnia due to tension, excessive worrying, and feeling overwhelmed, revved up sensation and many other symptoms.

There are many mind-body and cognitive techniques that will aid people with troubles sleeping.

Unhealthy lifestyle

Insomnia is often perpetuated by an unhealthy lifestyle and sleeping habits. Lifestyle can create insomnia on its own or can add up to other medical or psychological conditions that cause it.

Bad lifestyle habits that cause insomnia include:

  • Working home in the evenings. This can make you feel preoccupied and make it hard to unwind.
  • Taking naps in the afternoon. Short naps can be effective for some people, but they can cause insomnia in many cases too.
  • Sleeping in late. Your body’s clock can be confused if you are trying to make up for lost sleep by doing this. This can cause difficulties in falling asleep again when night comes.
  • Working irregular hours. Sleeping in different periods of the day can also confuse the body’s clock and cause insomnia.

Food that may cause Insomnia

There are certain activities and substances that can contribute to and cause insomnia. If you have difficulties sleeping, there are several foods you should avoid because they are known insomnia causes:

  • Alcohol can make you fall asleep many times, but also disrupts the sleep and causes insomnia.
  • Caffeine has an alerting power of keeping you awake. It is fine to consume it in moderation, but consuming excessive doses of caffeine can cause sleep deprivation
  • Nicotine is a stimulant that can cause insomnia. Smoking before bedtime can make it difficult to fall asleep and disturb the sleeping.
  • Heavy meals before going to bed are not a good idea either. This is why it is highly recommended that you eat lightly before bedtime.


Causes of Insomnia

Insomnia causes Problematic Night

Risks of Developing Chronic Insomnia

The risks of developing chronic insomnia include:

  • Being a woman. The majority of insomnia cases are women, especially because of their hormonal changes during menopause or menstrual cycles. Insomnia may also occur when a woman is pregnant.
  • Being older than the age of 60. Changes in health, medications and sleep patterns are a risk for developing insomnia.
  • Having a mental health disorder. Disorders such as depression, bipolar disorder, anxiety, and post-traumatic stress often disrupt sleep.
  • Being under a lot of stress. Temporary insomnia may be the result of stressful events. Chronic insomnia, on the other hand, can occur after long-lasting or major stress such as the death of someone you love.
  • Travelling a lot. Jet lag from various time zones can cause insomnia.

Complications of Insomnia

Sleeping is as important as regular exercise and healthy nutrition and the lack of it can affect people both physically and mentally. Complications of insomnia include:

  • Psychiatric problems
  • Overweight
  • Obesity
  • Lower performance at work or in school
  • Slowed reaction time
  • Irritability
  • Increased risk of other medical conditions
  • Substance abuse

If you have sleeping issues on a regular basis, there is a good chance you are suffering from chronic insomnia. When this happens, it is a good idea to think of any underlying medical issues or sleep disorders that may cause this problem. There are many ways to limit the possible distractions and get your sleep back on track. The treatment should always be discussed with a medical expert.