Sleep 7 hours a day

An adult’s normal sleep is seven hours a day. People who sleep 7 hours a day have the longest life span. Many people who live to 80 or 90 years old mostly sleep 7 hours a day, with good sleep quality and no insomnia.

Good sleep has many advantages

Seven hours of sleep a day also has the effect of reducing weight. Compared with women who sleep five hours a day on average, those who sleep less love “long meat” more than a third of the latter.

In medicine, people who sleep less than six hours a day are considered to be in insomnia. Too short sleep will bring certain harm to human body and increase the risk of serious diseases such as heart disease, high blood pressure, diabetes, stroke and so on.

To control the sleeping time to 7 hours every day will help to prolong life.

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