Various studies have shown the importance of sleep to support health. Lack of sleep is known to cause obesity, the risk of diabetes and heart disease, improve mental disorders, like depression and reduced concentration. Despite lack of sleep harm health, it turns out the excess of sleep is also not recommended because of too long duration of sleep also increases the risk of disease.
Although there is no magic number of experts recommended to sleep at the right time, but adults are advised to sleep 7-8 hours every day. It is also not absolute, because it turns out the quality of sleep is more meaningful than the duration of sleep.
Sleep needs of each person is also allegedly associated with genetic and environmental factors. What's important is we keep fresh the next day and can move optimally. With increasing age, sleep needs change. In the elderly for example, decreased ability to sleep and sleep quality also decreased too.
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