According to the human physiological cycle, the time of deep sleep is from 0:00 to 0.3 every day, and it is also the best sleep period. Therefore, it is best to enter a deep sleep state before 0:00. In addition, a short rest at noon is also very necessary. A nap is to recharge your health. It can not be underestimated for restoring physical strength, resisting fatigue, relaxing mood, reducing stress, etc.

What are the harmful effects of staying up late to sleep for a long time?

1. Decreased immunity

Often in the state of staying up late, fatigue, and lack of energy, the body's immunity will decline, and symptoms of autonomic nervous system disorders such as colds, gastrointestinal infections, and allergies will also come to you unexpectedly. And the direct symptoms brought by staying up late are dizziness, inability to concentrate, and even migraine headaches at work the next day.

2, affect fertility

Staying up late has a great impact on the fertility of both men and women. If a man stays up all night, the motility of sperm will decrease, and the number of sperm will also decrease, so fertility will of course be affected. , the quality of the eggs will deteriorate, and menstrual disorders may occur, which will affect fertility.

3. Damaged skin

If you stay up late for a long time, the normal circulation of the human endocrine and nervous system will be out of balance, and the imbalance of the nervous system will cause problems such as dryness, poor elasticity, dullness, and lack of luster on the skin; The skin is prone to acne, acne, chloasma, dark spots and other problems.

4. Damage to gastrointestinal health

When staying up late, it is easy to be hungry, and it is inevitable to eat late-night snacks when you are hungry, which will lead to the lack of proper rest for the stomach and intestines, and the gastrointestinal health will be damaged after a long time. The reason why some people have gastrointestinal disorders , constipation or even suffering from gastritis and other diseases, and staying up late is not unrelated.

What time do you go to bed and stay up late? Doctor: Not 11 o'clock, not 12 o'clock, most people do it wrong

Since staying up late to sleep has so many hazards, what time does it count as staying up late? Some people say that if you don't go to sleep at 11:00 pm, you stay up all night, and some people say that if you don't go to bed at 12:00 in the morning, you stay up all night.

From 11:00 p.m. to 3-4:00 a.m. (called meridian sleep in Chinese medicine), sleep during this time is particularly important. In layman's terms, during this period, most of the body's organs are in a state of rest and detoxification.

If you stay up late for a long time, it will cause metabolic disorders in the neuroendocrine system, which may cause rough skin, obesity, elevated blood lipids, fatty liver, elevated uric acid, elevated blood sugar, elevated blood pressure, etc., and even sudden death.

Therefore, it is suggested that everyone must fall asleep before 10 o'clock in the evening and ensure adequate sleep. After all, the body is the capital of the revolution.