Early to bed and early to rise is good for health. "This sentence can be read by people aged 80 and children aged 3. But many people do not have a clear concept of "early" to go to bed early, and do not know the specific harm of staying up late, so let's check with Xiaobian to see what is going on!
What time is it to stay up late?
No matter the season changes, just look at the rhythm of the human body's biological clock. In the past, we generally believed that 23:00 - 24:00 was a period of night sleep. Normally, 23:00 should fall asleep. After that point, we can stay up late.
But now scientists agree with another view: stay up late, that is, "stay up all night for business (staying up all night) or stay up late at night". In other words, staying up late needs to meet the condition of "forcibly depriving sleep time".
23:00 is not an absolute red line. If people get up at seven or eight in the morning and do not have extra sleep during the day according to their living habits, then staying up all night or staying up late at night can be regarded as staying up late.
Generally speaking, individuals need 4 to 10 hours of sleep, and most adults need 7 to 9 hours. As long as you have enough sleep time and good sleep quality every day, you will not stay up late if you are full of energy and do not fall asleep the next day.
What's the harm of staying up late?
1. Memory decline
The sympathetic nerves of those who stay up late stay excited at night and become tired during the day, resulting in dizziness, brain swelling, memory loss, and inattention. For a long time, neurasthenia, insomnia and other problems will also occur. I believe that many people have realized the danger.
2. Gastrointestinal crisis
The epithelial cells of human gastric mucosa are updated every 2 to 3 days on average, and usually at night. If you eat at night, the gastrointestinal tract will not rest, which will affect its repair. At the same time, the midnight snack stays in the stomach for a long time, which promotes the abnormal secretion of gastric juice and stimulates the gastric mucosa. Over time, it is easy to cause gastric mucosa erosion and ulcer.
3. High risk of heart disease
People who have been black-and-white for a long time will not only have bad temper, but also their viscera will not be adjusted in time, which will increase the risk of heart disease. So many cases of sudden death caused by staying up late should ring the alarm bell for everyone.
4. Skin damage
The skin enters the maintenance state from 22:00 to 23:00. If you stay up late for a long time, your endocrine and nervous system will be out of order, resulting in dry skin, poor elasticity, dull and dull skin, acne and acne. It is difficult to improve the dark yellow skin and poor complexion caused by staying up late with skin care products.