Staying up late will be detrimental to human health, because the adrenal cortex hormone and growth hormone are all secreted during the night when people are sleeping. The former is secreted before dawn, which can promote the metabolism of carbohydrate in human body, and protect the development of muscle; while the latter is produced only after sleep, which can not only promote the growth and development of young people, but also can delay the aging process of the elderly. As a result, staying up late will cause a variety of harms to human body.
First, frequent fatigue and decreased immunity
The most serious sequence caused by staying up late is fatigue and lack of energy. What's more, the immunity of human body will decrease accordingly. And some other symptoms such as cold, gastrointestinal infections, allergies will also appear.
The next day after staying up late, you will suffer from headache when you are at work or at class. You will be unable to concentrate. What's more, long-term staying up late and insomnia will also bring invisible damage to our memory.
Third, dark circles and puffiness
Night is the time for human body to have a good rest. Without adequate rest, you will feel extremely tired, which will lead to poor blood circulation around the eyes, causing dark circles or blood streak in the white of the eye.
owadays, many young people like to stay up, because there are a lot of night activities that attract them. As these young people work in the office in the daytime, so they need to hang out and find some fun at night, which leads to stay up. Recently, a 26 years old girl was diagnosed with cancer. When she got to know it, she just couldn’t believe it. As she was young and beautiful, the fate must play joke on her. She started to take a look back at her passed days. She overworked and always stayed up. How regretful she was. If given chance again, she would not stay up. Young people believe that as they are young so they can ignore these problems. Staying up is like committing suicide gradually, for health, sleep early.
Don't Stay up at Night.
Today more and more students are inclined to stay up at night.They enjoy the night so much that they don't go to bed until deep into the night or even until the next morning.Hower that would do harm to their health.Students who usually stay up can get tired the next day and they often sleep in class.They can't listen to the teachers heart and soul.As time goes on,they will do bad in their study ,and will be poor health.
For these reasons,I would like to advise those students who are staying up not to do that again!You should go to bed before 11 in the evening.Will you take my advice?