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Epidemiology of Insomnia, Depression, and Anxiety; Meaning and Treat

Insomnia is a medical term, and it can be defined as difficulty in sleeping. The studies show that there is a linkage between insomnia, depression, and anxiety. Insomnia could cause depression and anxiety, while depression, anxiety, and psychological distress could cause insomnia.

The Epidemiology of Insomnia, Depression, and Anxiety

What is Insomnia?

Insomnia is the most common sleep disorder. Following are the symptoms of insomnia.

  • It is hard to fall asleep
  • It is hard to stay asleep
  • Waking up too early
  • Difficulty to get back to sleep
  • Tiredness and restlessness
  • Depression and anxiety
  • Worries about sleep

What is Anxiety?

Anxiety is a feeling of uneasiness and tension. People from both genders feel anxiety at some point in their life. However, it could be mild and severe. Following are the symptoms of anxiety.

  • The feeling of restlessness and tension
  • Difficulty in concentration
  • A sense of fear
  • Tiredness
  • Dizziness
  • Short of breath
  • Headache
  • Stomach aches
  • Mouth dryness

What is Depression?

Depression is a psychological and medical condition that affects your feelings and cause you sadness. Following are the symptoms of depression.

  • Feeling of sadness
  • Having a depressed mood
  • Losing sleep
  • Change in appetite
  • Feeling worthless and guilty
  • Difficulty in Concentrating
  • Thoughts of death and suicide
  • Feeling psychological distress

Depression, anxiety, and insomnia are some of the most common psychological disorders. According to the Harvard health study, insomnia and sleep disorders affect more than 50% of adults with anxiety and depression and cause psychological distress.

The Relationship Between Insomnia, Anxiety and, Depression

The question arises that what is the relationship between insomnia and psychological disorders. Do insomnia cause anxiety and depression, or do anxiety and depression cause insomnia or both? Recent studies show that there are neuroendocrine similarities between depression and insomnia. Both are related to the overreaction of the hypothalamic-pituitary-adrenal axis and the hypersecretion of cortisol.

Some People reported that lack of sleep cause depression. At the same time, some others said that they lose sleep when they feel stress and depress. Anxiety and depression could cause nightmares and reinforce negative associations and fear around going to sleep. While at the same time, insomnia could bring stress and depression. Moreover, the research also shows that treating anxiety and depression may improve sleep patterns and vice versa.

How to Treat Insomnia, Depression, and Anxiety?


Antidepressants are t an effective treatment to cure anxiety and depression and help to improve sleep patterns. They may take time before they begin to improve the symptoms of these disorders. Your doctor or psychiatrist could prescribe the right medication for you according to the symptoms.


Besides medication, therapies and counseling are vital to treating depression, insomnia, and anxiety. Cognitive-behavioral therapy (CBT), interpersonal therapy (IPT), CBT for Insomnia, and electroconvulsive therapy are vital treatments to treat these mental conditions.


Exercise helps to cope with anxiety and depression and fight insomnia. Various exercise options are available, and everyone can choose according to the health and fitness level. A simple 10 to 15 minutes walk could help you to improve mental health.

Support and Self Help

If you have anxiety and depression, do not isolate yourself from others. Seek support from your friends and family and work to improve your mental health through self-help.

Adopt a Realistic Approach

Anxiety, depression, and insomnia are curable; however, even with the medications, the appropriate therapies, and self-help, the disorders will improve gradually, and you have to remain consistent to fight against the psychological distress.

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