People between the ages of 20 and 30 get more sleep every day

7-8 hours, 10 pm to 6 am.

The best time for a person to sleep has a certain regularity, about one beat every two hours. The first beat sleeps the deepest, and the second beat is slightly lighter.

The third and fourth beats are shallower. So the time of deep sleep is between 8 and 12 p.m., and the 4-hour sleep of these two beats accounts for 75% of the total sleep. Therefore, if you want to relieve fatigue and maintain high energy with the shortest amount of sleep in a limited time, it is best to schedule your sleep time between 9 p.m. and 2 a.m.

Sleep is as important to a person's health as breathing and heartbeat.

Adults can get 6 hours and 30 minutes of quality sleep every day, giving the brain enough time to rest. Their mental state during the day can be adjusted to the optimum, and the decline in physical function will be significantly slowed down, which is very beneficial to physical and mental health. Elderly people have to go to bed before 12 o'clock every night, and 7 hours or even hours is enough.

According to data released by the Alzheimer's Society, the aging of the brain can be delayed by two years for older people who sleep less than 7 hours a night. Sleeping more than 7 hours or not getting enough sleep for a long time can lead to poor concentration and even Alzheimer's disease, increasing the risk of early death.

However, not every adult can sleep for 6 hours and 30 minutes, and many suffer from insomnia. Yesterday, the Institute of Sleep Diseases of Traditional Chinese Medicine of Shanghai Hospital of Traditional Chinese Medicine announced the results of a survey of 2,421 insomnia patients who came to the hospital last year. It was found that the number of female insomnia patients increased significantly, accounting for 63% of the total number, and the proportion of 31-50 year olds increased by 6 percentage points compared with three years ago.

The survey also found that insomnia patients are mostly cadres, managers and managers. The most common sleep problems in older adults are dreaminess and insomnia. Dreaming is due to the deterioration of brain function in older people; Insomnia is usually caused by a decrease in melatonin secretion in the body.

Melatonin is one of the important factors that determine the body's sleep. Guo Heng suggested that the elderly with poor sleep quality at night should develop the habit of taking a lunch break of no more than one hour. Otherwise, the central nervous system of the brain will deepen the inhibition, resulting in a relative reduction of blood flow in the brain, slowing down the metabolism in the body, and easily leading to discomfort and even drowsiness after waking up.

This group of people is often the "backbone" of society. Fast-paced life, above-average work pressure, and irregular daily routines make them a high-risk group for insomnia. However, many young white-collar workers often stay up late due to irregular lives, resulting in biological clock disorders and insomnia.

For 7 hours, people can sleep at this point in time to achieve a state of sleep more easily, help relieve fatigue, and will not be easily woken up, disturbed by the environment, and will not have more nightmares.

A 30-year-old should sleep about 8 hours a day, and only when it reaches 8 hours can it relieve stress and allow the body to get a good rest.

Normally, you should sleep between 6 and 8 hours, which can help relieve fatigue, improve concentration and maintain sufficient energy at work.

30 60-year-old adults: Sleep about 7 hours a day.

Adult men need hours of sleep and women need about hours, and should be guaranteed a "quality sleep time" from 10 p.m. to 5 a.m. Because people tend to achieve a deep sleep state at this time, it helps to relieve fatigue.

A 20-year-old should sleep for 8 hours. In fact, the best sleep time for different ages is different, everyone should sleep scientifically according to their age, as long as they are not sleepy during the day, it means that the sleep time is enough. Some people sleep for a long time, and some people sleep for a short time.

The length of sleep varies with the seasons and decreases with age.

Seniors over the age of 19: Sleep for an hour per day.

Adults aged 60: Sleep about 7 hours a day.

29-year-old young man: Sleep about 8 hours a day.