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Your comprehensive guide to the damage of lack of sleep to the body



Lack of sleep is one of the important reasons for the occurrence of many health problems, as it is possible for the individual to feel angry throughout the day, as it causes weakness and inability to perform daily tasks and duties properly, and makes the body vulnerable to many diseases such as diabetes, cardiovascular disease, High blood pressure, and therefore it is necessary to ensure a good and regular sleep in order to give the body parts the opportunity to perform their functions well.


It is known that healthy and normal sleep should be at least 8 hours a day and that this sleep should be during the night periods, because sleep works to maintain the health of the body and mental health and adjust the psychological state, and the person avoids depression, anxiety, tension, in addition to preventing Alzheimer’s And we can treat lack of sleep by using some types of medicines and natural herbs, and with this article, we will present to you the harms of lack of sleep in detail.

Table of contents


Damages of lack of sleep

Lack of sleep causes many problems and damages to the human body, including:

Weakened immune system:

Not sleeping for enough periods can negatively affect the functions and health of the human immune system, until it becomes unable to resist diseases and infections.

Sleep deprivation may cause prolongation of illness and injury and difficulty recovering from it, and the chances of exposure to chronic diseases and various and varied infections increase, and the incidence of respiratory infections such as colds and influenza increases, and respiratory diseases may worsen to become chronic diseases such as lung diseases.

Increase in weight:

One of the major damages caused by lack of sleep is an increase in body weight, which is due to an imbalance in the body’s hormones caused by sleep disturbance.

Sleep greatly affects the levels of the hormone leptin and ghrelin, which are hormones that control the feeling of hunger and the feeling of satiety, as the satiety hormone sends some signals to the brain that there is an adequate amount of food, but in the event of lack of sleep its levels decrease and the levels of the hunger hormone rise, which is what Explains the high desire to eat at night.

Lack of sleep leads to a decrease in energy levels and a tendency to lethargy and laziness, which leads to loss of the ability to exercise important exercises for weight maintenance.

Over time, lack of sleep results in an increase in weight, and it is accompanied by many health problems that can affect the body.

High incidence of diabetes:

Lack of sleep can cause type 2 diabetes, and this occurs as a result of a decrease in levels of the hormone insulin in the body, which is the hormone responsible for regulating blood sugar.

In this case, the amount of stress hormone increases, which negatively affects the action of insulin and causes a rise in blood glucose levels, which increases the risk of developing type 2 diabetes.

Higher risk of vascular and heart disease:

Sleep has an important role in promoting cardiovascular health and maintaining high blood pressure and blood sugar levels.

During normal sleep periods, blood pressure levels decrease, but in cases of lack of sleep, blood pressure levels remain high for a long time, which increases the incidence of heart disease and strokes.

To date, there is no clarity on the link between lack of sleep and heart health, but we can conclude that sleep deprivation may disrupt the functioning of body functions and biological body processes such as glucose metabolism and high blood pressure.

One of the reasons why poor sleep is linked to heart disease is that most people who suffer from sleep apnea, which leads to waking up repeatedly during the night, are often exposed to heart problems.

Impaired sexual health:

Lack of sleep can cause some negative effects on the production of hormones in the body, including testosterone in men and female hormones, and this negatively affects the sexual health of men and women.

It is also known that lack of sleep affects mood and increases feelings of tension and anxiety, which leads to a decrease in sexual desire.

An imbalance in the body’s hormones:

Lack of sleep affects the hormones of the body in general, including the hormone responsible for the growth process, especially in children and adolescents, as this may affect the process of repairing body tissues and cells and the process of building body muscles, in addition to its effect on other growth processes.

Lack of focus and attention:

Sleep has a fundamental role in the process of enhancing ability and mental health and improving the process of education and thinking. Lack of sleep can negatively affect the cognitive processes of a person, causing weakness in concentration, lack of alertness, impaired attention, loss of ability to solve problems, and an increase in educational difficulties.

Paleness of the skin:

When sleeping periods are regular, they greatly and negatively affect the skin, making it prone to paleness, the appearance of puffiness in the eye area, the appearance of early small wrinkles, in addition to the skin’s loss of moisture and elasticity.

continuous headache:

There are a group of causes that lead to headaches, especially during the morning periods, and the most important of these reasons is not getting enough sleep periods, the human body needs 8 continuous hours of sleep on a daily basis, and in cases of sleeping for fewer hours, the body receives a signal that there is an error and is accompanied by high Heart rates, high blood pressure, feeling nervous, all of this causes headaches, especially in the early morning hours.

Causes of lack of sleep:

There are many and many causes that lead to lack of sleep, and the most important of them are:

  • Affliction with a sleep disorder: such as insomnia, narcolepsy, restless legs syndrome, sleep apnea.
  • Aging: Many people over the age of 65 years suffer from sleep problems, due to aging, or because of some types of drugs that are taken, or as a result of some diseases that they have.
  • Incidence of some types of diseases: Lack of sleep is one of the most common disorders of people with some types of diseases such as depression, cancer, heart disease, and Parkinson’s disease.
  • Staying up: Some people have a great desire to stay up during the night and do not realize the importance of sleeping for the body, and instead of going to bed early, they stay up late at night as they use social media, watch TV, read books and many more.
  • Taking some types of medications: Some types of medications that are taken cause a lack of sleep, such as antiepileptic drugs, drugs for lack of concentration and hyperactivity, in addition to insomnia.
  • Some other reasons: Some people may develop a lack of sleep due to several reasons such as stress, some changes in the daily routine, having babies, drinking caffeine and energy drinks,


  1. Damages of lack of sleep on the body
  2. Symptoms of lack of sleep and its impact on health
  3. Insomnia – symptoms and causes – Mayo Clinic.
  4. Sleep Disorder – Wikipedia.