Sleep is an individual matter. Each person needs a certain amount of hours to sleep and feel refreshed all day. Someone requires special conditions to fall asleep. Doctors found that a grown man should spend on sleep 7-8 hours a day. Information published in The Telegraph.
Over 10 years of study, researchers conducted a survey of one million people. Analysis of the collected material showed an excess of sleep may indicate depression, heart disease and diabetes. Are these the root cause of illness or prolonged sleep causes them, scientists are not reported.
According to the survey, long sleep increases the risk of premature death by 30% compared with people, diverting to sleep 7-8 hours a day.