200 1 A survey conducted in five major cities in China shows that about% of adults have symptoms of sleep disorder. According to another survey, in addition to 15% ~ 30% adults, 10% ~ 23% teenagers also have sleep problems such as falling asleep, falling asleep again and waking up early. A good sleep every day has become a distant "dream" for many people. Experts also pointed out that poor sleep, insomnia is not just a "small matter" that can be solved by swallowing a few sleeping pills. Healthy sleep is a big problem that can't be ignored.

Everyone has the best sleep length.

People feel comfortable and efficient when they sleep well. However, how much sleep do humans need? Experts who study sleep find that sleep time changes with age. Accurately speaking, from infancy to eighties, people's sleep time will continue to decrease, and each age group has its own special standard sleep time.

1. 1 to 4 years old. Children of this age should sleep 12 hours at night and about 3 hours during the day. Of course, most children at this stage will not suffer from insomnia. If you can't sleep well at night, parents should pay attention to whether you are sick.

Secondly, it is necessary for children aged 5- 10 to sleep for 12 hours, and try to take a nap at noon.

Third, 13 to 20 years old. Teenagers of this age are usually used to sleeping 8 hours a day. At 3 o'clock in the evening, they slept soundly, so they had to change to a strict and constant sleep time from 24 o'clock in the evening to 6 o'clock the next morning.

Four, 2 1 For young people aged 30, 8 hours' sleep is enough.

5, 3 1 to 60-year-old adults, adult men need 6.49 hours of sleep time, women need more time (7.5 hours). The reason is that the rhythm of continuous sleep in menopause has changed.

6. Insomnia is more common in women over 30 years old. According to research, only young unmarried women have better quality of insomnia than in, but this is relative. They need longer sleep time than men.

Seven, the elderly over the age of 60, the night sleep time is getting shorter and shorter, 7 hours or even 5.5 hours is enough, and the sleep is relatively shallow, and the deep sleep time is not much. However, the elderly need a nap more. A good trick for the elderly to sleep is to shorten the nap time to prolong the night sleep. Going to bed after midnight also helps to sleep. It is important to keep the bedroom as quiet as possible.