Staying up late is harmful to your health.

1, staying up late will cause gastrointestinal dysfunction. For those who stay up late, physical fatigue is easy to cause dysfunction. When staying up late, people's lives are often irregular. Because of staying up late, some people will eat more dinner, and some people will have a big meal when they are hungry. Therefore, people who stay up late often have gastrointestinal problems, such as indigestion and constipation.

2. Staying up late will reduce the body's resistance. The function of human body is a closed system, and gastrointestinal dysfunction will naturally lead to decreased resistance. In addition, often feeling tired and depressed is also a common symptom. Among the many kinds of injuries caused by staying up late, the most common one is that people are often tired, depressed and their physical resistance drops. For people with weak resistance, respiratory diseases such as colds and digestive tract diseases such as gastrointestinal tract will also come to you. This is mainly because staying up late destroys people's normal physiological cycle, the normal "reaction" system of the human body is destroyed, and the resistance will also decline.

3. Staying up late can easily lead to poor eyesight and memory, skin damage, eye overload for a long time, eye pain, dryness, swelling and other problems, and even make people suffer from "dry eye". Eye muscle fatigue may also lead to "time-consuming" vision decline. In addition, overwork caused by staying up late for a long time is also easy to induce central retinitis, which makes people have blurred vision, dark shadows in the center of the field of vision, distorted vision and other symptoms.