Everyone has been fooled by the concept of '8 hours of sleep'! What is the best amount of sleep?

According to sleep coaches, pursuing 8 hours of sleep is neither necessary nor necessarily good. So, how much sleep is enough? Here is the correct answer!

"Eat well and sleep well", sleep is a prerequisite for maintaining good health, about 1/3 of our life is spent sleeping, and sleep is also a necessary daily physiological activity. If we sleep enough and regularly, our body can be in a healthy state.

As we age, our physical condition and fitness will not be as good as before, our body will begin to show signs of aging. The quality of sleep and our health can be said to have a very close relationship. Sleeping well, sleeping enough and regularly will help improve health, on the contrary, people who do not sleep enough, stay up late often will easily weaken their physical condition.

Have you heard of the '8-hour sleep concept' ? We have been advised to get 8 hours of sleep every day to maintain good physical health, but some people have questioned this, claiming that 8 hours of sleep a day is a hoax.

About 1/3 of our life is spent sleeping. (Illustration photo).

Are you being fooled by the "8-hour sleep concept"?

Sleep coach Nick Littlehales , who has been in charge of sleep monitoring for Manchester United, has provided scientific sleep advice and guidance to Manchester United athletes to ensure that athletes can restore themselves while sleeping, and can maximize their individual fitness.

At that time, Manchester United had won the Premier League championship 3 times in a row. In his book "Sleep Revolution" , Nick Littlehalles pointed out that pursuing 8 hours of sleep is not necessary and not necessarily good . The main reasons are as follows:

1. Each person's physical condition is different, so the amount of sleep needed is different. Sleeping too much or too little can be harmful to your health. Therefore, applying the 8-hour sleep rule to all 7 billion people in the world is very harmful.

2. Getting 8 hours of sleep every night is unrealistic. For the vast majority of students, getting 8 hours of sleep every day is very difficult to achieve, and can even cause additional stress and anxiety in the body.

3. Sleep quality should be measured by the number of sleep cycles, if you insist on getting enough 8 hours of sleep, it is meaningless. A sleep cycle lasts about 90 minutes, after 90 minutes, the body will experience non-eye movement sleep, eye movement sleep and rapid eye movement sleep. It is like going down the stairs, when people go down the stairs deeper and deeper, it means that our body is also entering deeper and deeper levels of sleep.

Therefore, you can try the R90 sleep plan of top athletes mentioned in the book "sleep revolution" . The flexible sleep plan of R90 has been advocated by many people instead of the rigid 8-hour sleep concept.

For the elderly, sleep disorders are always the biggest problem affecting their health. (Illustration photo)

After 60 years old, how long is the best sleep?

For the majority of middle-aged and elderly people, sleep disorders are always the biggest problem affecting their health. As age increases, the brain's central nervous system gradually weakens, and sleep quality will also be affected and greatly reduced. According to doctors' advice, middle-aged and elderly people should go to bed on time before 10pm, and before going to bed, they can drink a glass of warm milk, preferably 200ml.

Sleeping 6-7 hours a day is enough, for those who sleep less, they only need to sleep 5 and a half hours a day. According to related research, it is found that people over 60 years old should not force themselves to sleep 8 hours a day, sleeping too much will easily increase the risk of Alzheimer's disease. On the contrary, people should also note that if the sleep time is not enough, even less than 5 hours, it will also be able to accelerate the aging process of the body and easily increase the risk of early death.

How much sleep do people of different ages need?

The US Sleep Foundation has analyzed sleep time for different age groups as follows:

1. Elderly (≥65 years old): 7-8 hours.
2. Adults (26-64): 7-9 hours.
3. Young adults (18-25 years old): 7-9 hours.
4. Teens (14-17 years): 8-10 hours.
5. Children (6-13 years): 9-11 hours.
6. Preschool children (3-5 years old): 10-13 hours.
7. Toddlers (1-2 years): 11-14 hours.
8. Newborns (4-11 months): 12-15 hours.
9. Newborns (0-3 months): 14-17 hours.

Top 3 types of meat are known as the "nemesis" of high cholesterol and high blood pressure, and are cheap.

Could we survive if the Earth stopped spinning?

Why did the unique AD-1 oblique-wing aircraft "die young"?