Effects of Sleep on Human Health and Fitness

Sleep is a natural vitamin for the body as it directly impacts human health and fitness. A night’s rest is able to heal, restore, and also cleanse the brain of decay products. If you do not have enough sleep, you should not be surprised at the development of various mental disorders. This is how the body reacts to the lack of healing rest.

Need of Sleep

Sleep is a human physiological need, just like hunger or thirst. If you deprive a person of sleep, then, in the end, he will die. In ancient times, people considered sleep to be like death after all; when a person went to bed closed his eyes, his breathing became less frequent, and the reaction to external stimuli decreased.

Why is Sleep Essential for Human Health?

Even after one sleepless night, which happens in the life of almost every person, fatigue appears, the concentration of attention decreases and difficulties arise with complex activities. If you do not sleep for 2-3 nights, then coordination of movements and focusing of vision is disturbed. In the future, irritability, slowing down of movements, slurred speech, hallucinations, and strange behaviour appears.

A person cannot keep up a conversation, becomes indifferent to the world around him, there are difficulties in performing the simplest everyday skills. All this only confirms that quality sleep is essential for our body. Lack of sleep reduces resistance to disease. During sleep, neurotransmitters are produced – special chemicals that, like a conductor, make our bodywork smoothly, like a clock. Therefore, the immune system is in great need of sleep. People, who sleep well, get sick less.

Disorders Associated with Lack of Sleep

Lack of sleep has an extremely negative effect on the work of the brain: the sharpness of thinking is disturbed, the emotional system is loosened. Lack of sleep can easily exacerbate the effects of mental disorders and cause a relapse. To date, more than 70 types of sleep disorders are known to exacerbate mental disorders. However, they act differently for each individual disease. Some of the most common effects of sleep include:

Anxiety disorders

Sleep disturbances are not uncommon for patients with phobias, obsessive-compulsive disorder, or severe levels of anxiety. They quickly exacerbate the existing problem and also greatly interfere with therapy and recovery.

Bipolar disorder

People who suffer from this ailment need much less time to sleep than healthy people. This is especially aggravated before the onset of the manic phase. Moreover, sleep problems strongly suppress mood and lead to relapses.


Attention, deficit hyperactivity disorder is also not without unpleasant symptoms in the form of a lack of normal sleep. Rest becomes intermittent and incomplete; the body gradually loses energy and the ability to resist disease.


Nearly 90% of people diagnosed with depression have trouble sleeping. Most often, it is insomnia and obstructive sleep apnea. At the same time, the presence of these sleep disorders immediately leads to depressive states. It turns out a vicious circle. However, you can try to break it by setting up a night’s rest.


People with schizophrenia are more likely to suffer from insomnia and circadian rhythm disturbances. Sleep problems can be exacerbated by medications to treat schizophrenia. As a result, poor sleep and the symptoms of the disease reinforce each other.

How to Cope with Sleep Disorders?

If you notice that the quality of your night’s rest is deteriorating, make an appointment with an experienced doctor. The doctor will identify the causes of lack of sleep and give useful recommendations. However, there are general rules that should be followed by anyone who wants to make their sleep healthy and sound.

  1. Getting rid of harmful products and substances

Alcohol provokes insomnia, and nicotine causes the sleeper to wake up over and over again due to a strong acceleration of the heartbeat.

  1. Sports

Regular physical activity strengthens the immune system and helps you fall asleep faster.

  1. Sleep conditions

The room in which you sleep should be well darkened; noise-free, and the humidity and temperature should be optimal.

  1. Relaxation

Before going to bed, you can meditate do breathing exercises. This will allow you to tune in to sleep much faster.

  1. Cognitive Behavioural Therapy

The technique is based on self-hypnosis. The patient convinces himself that he can sleep well. It helps you look at life differently. Every trouble is not seen as the result of a sleepless night.


Sleep is as essential to humans as air. Its poor quality can greatly harm the health and condition of a person. To live a full life and get rid of many diseases, try to adjust your regimen and get enough sleep for the proper health and fitness of your body.

About Zahid Shaukat

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