Yes, staying up late can lead to overweight and obesity, because after people fall asleep, during normal sleep, the body will automatically secrete a substance called "leptin", which helps to break down excess fat in the body and relieve obesity symptoms, so keep enough sleep.

Staying up late will also damage the skin: staying up late for a long time will cause imbalance of endocrine hormones in the body and make the skin worse, such as acne, acne, dry and rough skin and so on.

Staying up late for a long time can also lead to memory loss. People who stay up late often stay excited at night and get very tired during the day. In the long run, they will have poor memory and inattention, which is very unfavorable to their study and work.

Staying up late will also increase the risk of heart disease; There are more and more gastrointestinal diseases, and people who stay up late for a long time like to eat midnight snack at night. Such people will increase the burden on the spleen and stomach, and they will not get a good rest when they rest, and the function of spleen and stomach transport will naturally deteriorate.