How many hours of sleep a day is the longest life? In fact, the length of sleep varies from person to person. Some people need to sleep for 8-9 hours to be full of energy, while others only need to sleep for 5-6 hours, which is related to age and many factors. Whether you sleep too much or sleep too little, it will affect your life span.

First of all, when did you sleep well?

First of all, if you want to ensure a healthy sleep, you must follow the running law of the biological clock. For example, when to sleep and when to get up, you should have fixed habits and don't change them easily. As the saying goes, going to bed early and getting up early is good for your health. When do you get up? Internationally recognized is 6 o'clock. Coupled with the change of natural seasons, it is recommended to sleep in summer:

22:00~23:00, get up: 6: 00-7: 00; Fall asleep in winter: 2 1:30-22:30 and get up at 6:30-7:30.

At noon, the alertness of the human body is declining. At this time, taking a nap helps to restore the spirit and is conducive to work, study and physical health. In addition, dinner should be finished two hours before going to bed, because growth hormone reaches its peak at night, and eating midnight snack will affect the secretion of growth hormone, thus affecting the growth of the body. If you are really hungry, you can eat something high in protein, such as eggs, bean products and milk.

Secondly, how long does it take to sleep?

A study conducted by scientists shows that if people spend too much time in bed every night, its impact is just like sleeping too little, which will lead to many sleep problems. Different age groups have different sleep time, and the best sleep time for each age group is as follows:

Too long and too short is not good, 7 to 8 hours is appropriate! At the same time, we should adjust the length according to the season, sleep less when the summer nights are short, and sleep more when the winter nights are long and cold! Sleep 7~8 hours in summer and 8~9 hours in winter! On this basis, children will increase 1~3 hours, and the elderly will decrease 1~3 hours.

Furthermore, the quality of sleep is very important.

You should know that sleep time is very important, but sleep quality is also very important. Otherwise, even if the sleep time is seven hours, but the quality is not good, it will also affect the life span. To ensure a good sleep quality, you need to have certain conditions, such as a good sleep environment and a stable emotional state. Usually, you can pay more attention to health care knowledge, soak your feet before going to bed, and don't cover your head when sleeping. It is best to lie on the right side, and don't sleep with the light on. If you can do this, you can usually ensure the quality of sleep.

In short, good health will naturally lead to a long life. At present, it is believed that sleep time varies from person to person and does not depend on how much. As long as you are suitable for your own sleep time, you will prolong your life.