how many hours of sleep per day

September 6, 2023

Sleep is the best way to restore energy, a good sleep can make people feel refreshed, the body will also be times great! But now many young people are very confused sleep, either not enough sleep 3-4 hours, or can sleep more than 12 hours, in the end the most healthy, the most scientific sleep time is a few hours? Here is the secret to reveal to you

Standard healthy sleep time

According to the American Cancer Society's survey, the length of sleep is closely related to the length of life, and people who sleep 7-8 hours a day on average have the longest life expectancy. People who sleep less than 4 hours have twice the mortality rate, while those who sleep more than 10 hours a day, 80% of them may have a short life.

Healthy sleep time for each stage of age

A person's sleep time needs to be changed according to different age, physical condition, habits and seasonal changes and physical exertion. The scientific sleep time should be appropriate to wake up with a relaxed body, clear mind and full of energy. Therefore, the required sleep time may vary according to age.

Older people

As the metabolic function of the body slows down and the recovery of physical strength is slow, the sleep time should be longer than the standard healthy sleep time. It is generally recommended that the elderly aged 60-70 years old should sleep 8 hours a day; those aged 70-90 years old should sleep 9 hours a day; those aged 90 years old and above should sleep more than 10 hours a day.

Adults

The normal adult sleep schedule is similar to the standard healthy sleep schedule, with only slight differences between men and women. As the saying goes, "men eat, women sleep", so women should sleep longer than men, and it is recommended that women sleep 8 and a half hours a day (including a half-hour lunch break), while adult men are not recommended to sleep more than 8 hours.

Infants and children

For newborns up to 1 month of age, the total number of hours of sleep per day is 21-22 hours. For infants aged 2-6 months, the total number of hours of sleep per day is about 14-16 hours for children aged 1-3 years, the total number of hours of sleep per day is about 12 hours

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