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The standard sleep time for adolescents is 8-10 hours.
In terms of work and rest, for different age groups, the Healthy China Trip plan from 2019 to 2030 clarifies the length of different sleep durations
Elementary school students sleep 10 hours a day, junior high school students sleep 9 hours a day, high school students sleep 8 hours a day, and the elderly sleep about 7 8 hours a day.
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Elementary school students should sleep no less than 10 hours a day, junior high school students should sleep no less than 9 hours, and high school students should sleep no less than 8 hours a day.
On December 29, 2018, the Ministry of Education and other nine departments jointly issued the "Measures to Reduce the Burden on Primary and Secondary School Students", with a total of 30 articles. For the first time, this "burden reduction order" clearly states that students are not allowed to bring mobile phones into the classroom, and there are clear "scales" for the total amount of written homework, students' sleep time, and the number of exams.
The "Burden Reduction Order" also has clear requirements for students' sleep time, and families should ensure that primary school students sleep no less than 10 hours a day, junior high school students no less than 9 hours, and high school students no less than 8 hours.
Liu Xiuying, director of the Family Education Research Institute of the China Youth Research Center, said that sleep is the most comprehensive and effective rest, and adequate sleep can improve children's brain power.
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In general, adolescents aged 15 to 20 sleep 8 to 9 hours a day, and women sleep a little more than men.
However, with the progress of society and the improvement of material and cultural living standards, people's life content is becoming more and more colorful, coupled with the continuous improvement of human nutrition, living conditions and environment, people's concept of sleep is also changing. The old concept of "working at sunrise and lying down at sunset" that simply emphasized that long sleep time is good for health is changing, and it is replaced by a new concept that people should sleep less and sleep soundly and with higher quality. Because according to the laws of nature and the regulation of the body, if the sleep time is too long, the depth of sleep will inevitably become shallow; On the other hand, if the sleep time is short, the sleep will be deepened.
This means that long sleepers have less deep sleep and shorter sleepers have more deep sleep. The deep sleep component is the most important, during deep sleep, the brain can be fully rested, the secretion of growth hormone increases, the growth and development are accelerated, and the recovery from fatigue is the best. In addition, short sleep saves a lot of time, and it also develops intelligence.
Jiu Jin is a short sleeper, according to his experience, if you don't finish writing the manuscript before going to bed, you can continue to write it immediately after waking up, there is no need to review the previous content first, clear your mind and then continue. The recovery of the mind does not require long sleep, but a short sleep. In an experiment, 52 managers (with an average age of 35) were asked to perform a series of simple calculations, then sleep for 20 minutes, and then wake up and perform a series of simple calculations again, and the results showed a 42% improvement in performance compared to before bedtime.
Since short sleep not only saves time, but also has benefits for human health and intellectual development, most scholars advocate short mature sleep rather than long sleep.
According to the existing living conditions in our country, it has been proposed that primary and secondary school students (6 to 18 years old) should generally not sleep more than 8 hours a day and night; 19 Young adults aged 55 should generally not get more than 7 hours of sleep; Seniors over 60 years old should generally take about 6 hours. Of course, the above sleep time is only a reference time, how much sleep each person sleeps, but also according to their own physique, nutritional status, living conditions, environment, as well as mental and physical strength, labor intensity and other comprehensive factors to consider.
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