More than a few decades people used to sleep for eight to nine hours at night. However, in the world of BlackBerry, the Internet, tight deadlines, and increased stress, as now it is clear that our sleep needs reduced, too. When compared with several years ago, now the average person only slept about six hours every day. The data in 2009 only 28 percent of Americans who slept eight hours a day. This amount is reduced from 2001 which reached 38 percent.
In fact, 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 each person needs 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 to Healthy Sleep
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