Medical expert Marina Lebedeva warns that both too little and too much sleep can be dangerous to your health. The optimal sleep time for an adult is 7-9 hours. Less or more sleep can lead to serious problems such as cardiovascular disease, neurological disorders and metabolic problems.
People who sleep more than 10 hours a day are more likely to have a cerebrovascular accident. And those who suffer from chronic sleep deprivation are at risk of developing neurosis and obesity. Certain biological rhythms operate in the human body, which are controlled by hormones that are released depending on the time of day. For example, when it gets dark, cortisol, the activity and stress hormone, decreases, while the sleep hormone melatonin rises. In order to feel good and cheerful, it is important to understand your individual characteristics and adjust your activity according to the body’s biorhythms.
Source: Ferra

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