How many hours of sleep a day does a junior high school student sleep at least a day, and how many h

As early as 1951, China's "Decision on Improving the Health of Students at All Levels of Schools" clearly stipulated that junior high school students should sleep for 9 hours and high school students should sleep for 8 hours. In 1979, the Ministry of Education and the Ministry of Health jointly issued the Interim Regulations on Health Work in Primary and Secondary Schools (Draft), which reaffirmed this provision. The Guiding Outline for Health Education in Primary and Secondary Schools, promulgated in 2008, once again clearly stipulates.

At present, due to the fact that students generally study too long in school and have an excessive academic burden, nearly seventy percent of middle school students sleep less than seven hours a day.

The adverse effects of lack of sleep on primary and secondary school students are obvious. Physiological studies have shown that the growth of adolescents and children is mainly completed during sleep, and the peak of growth hormone secretion is from 22 o'clock in the evening to 1 o'clock in the morning, and if this sleep time is missed, the metabolism of cells will be affected. For primary and secondary school students, who are at a critical stage of their physical and mental development, the impact of sleep deprivation is multifaceted.

In addition to genetics, nutrition, exercise and other factors, the growth of children is also closely related to the secretion of growth hormone. Growth hormone is secreted more after a person is asleep, and getting enough sleep contributes to heightening. Frequent lack of sleep will affect the secretion of growth hormone and affect the growth of height.

Sleep is the process of enhancing the body's immunity, and frequent lack of sleep will reduce the body's immunity, which will lead to various diseases, such as neurasthenia, myopia, decreased appetite, etc., and it is easy to catch a cold. Affecting the brain's creative thinking, lack of sleep will make people have difficulty concentrating, memory loss, slow thinking, etc., which will affect children's learning. Children who lack sleep are prone to depressed mood, irritability, or anxiety, nervousness, depression and loneliness, which will seriously affect the normal psychological development of children.

Elementary school students need 12 hours of sleep, and secondary school students need 6 to 8 hours of sleep.

A few hours of sleep a day is the healthiest.

The ideal sleep time for junior high school students should be about 10 hours a day, and generally not less than 8 hours.

In junior high school, try to reduce stress as much as possible, arrange study and life reasonably, study in the best efficient time, combine work and rest, and eat some milk and honey at night to improve sleep.

The appropriate sleep time for people of different ages is different, and the age can be set to x, and the optimal sleep time y approximates y=21-6x.

Some experts have suggested that the elderly need longer sleep than adults due to weak qi and blood, so there is y=22-7x. In this function, people over the age of 60 have an increasing trend in sleep time.

Secondary school students should get at least 8 to 10 hours of sleep a day.

The dangers of sleep deprivation:

1. Slow response.

Making tea also spills the tea on the new clothes you just bought. Such clumsiness may be the fault of lack of sleep. There is a large body of evidence that people with aesthesia are sluggish, have difficulty concentrating, have slow reactions, and have worse motor skills.

In addition, drowsiness can lead to impaired balance and deep perception.

2. Emotional impulsiveness.

Lack of sleep can lead to mood capriciousness. One study found that when you don't get enough sleep, you're more likely to be depressed because a tired brain stores more functional negative memories. The behavior of people who are awake is very similar to that of people with depression.

Lack of sleep can lead to deterioration and impulsiveness, such as poor diet, shopping without considering the consequences, irritability and other emotional problems.

3. Dysfunction of expression.

The frontal lobe of the brain is associated with speech, and constructive thinking and creativity can be deeply affected by sleep deprivation. Experts believe that people who are sleep deprived have difficulty having spontaneous and complex speech, and many will have slurred speech, stuttering, monotonous speech, or use clichés.