Young people had better go to sleep before 23: 00 every day and get up at 6: 30 the next day.

Second, the harm of lack of sleep:

1, affecting brain thinking and reducing work efficiency.

I believe everyone has a deep understanding. On the second day after staying up late, people often feel dizzy, unable to concentrate on work or class, and even have a headache. Long-term staying up late and insomnia also have intangible damage to memory. Expert experiments have proved that a person's brain must have enough sleep to think clearly and react sensitively. If he doesn't get enough sleep for a long time, he will feel anxious and uneasy, and his brain will not get enough rest, which will affect his creative thinking and ability to deal with things. Then the work efficiency will be greatly reduced.

2. Teenagers lack sleep, which affects their normal development.

Modern research believes that the growth and development of adolescents is related to the secretion of auxin in addition to genetic, nutritional and sports factors. Because the secretion of auxin is closely related to sleep, that is, there is a big secretion peak after people fall asleep, and then there are several small secretion peaks, while in the non-sleep state, the secretion of auxin decreases. Therefore, teenagers should develop well, grow tall and get enough sleep.

Lack of sleep will make people old.

Lack of sleep leads to dark circles, bags under the eyes and dry skin. Night is the physiological rest time of human body. Without rest, the blood circulation around the eyes will be blocked because of excessive fatigue, resulting in dark circles, bags under the eyes or bloodshot eyes. The time from 1 1 to 3 am is beauty time, that is, the time when the human body's meridians run to the gallbladder and liver meridians. If these two organs don't get enough rest, they will appear on the skin, which is prone to rough, yellow, black spots, acne and other problems.

Lack of sleep can lead to various diseases.

Frequent lack of sleep can make people feel anxious and reduce their immunity, which can lead to various diseases, such as neurasthenia, colds, gastrointestinal diseases and so on. In addition, expert research shows that insufficient or irregular sleep will not only make people's eyes swell, like drinking coffee and taking a nap at afternoon meetings, but also increase the risk of many major diseases, including cancer, heart disease, diabetes and obesity.