What are the harms to the body of staying up late?

I believe everyone stays up late, but an occasional night will not have much impact on the body. If you stay up late regularly, it will be harmful to the body.

For example:

1. Decreased memory and concentration.

2. Hair loss and metabolic disorders can harm the heart and lead to sudden death.

3. Causes skin blood circulation to slow down, causing skin to become dull and yellow, poor blood circulation around the eyes, blood accumulation to form dark circles, accelerated adrenaline secretion, resulting in increased sebum and clogged pores. Formation of acne and blackheads.

4. It causes the body to increase the secretion of "hunger hormone", increases appetite, consumes more calories, and causes obesity.

5. Staying up late is classified as a Category 2A carcinogen in the list of carcinogens of the World Health Organization's International Agency for Research on Cancer.

2 a.m. to 3 a.m. is the main time for melatonin synthesis, and light will destroy the formation of melatonin. Lack of melatonin can lead to breast cancer, prostate cancer and other diseases.

6. It causes biological clock disorders, and at the same time affects cell division and DNA repair, reducing the body's own immunity and its ability to kill cancer cells.

The harm caused by staying up late is actually latent in your body for a long time, and you never know when it will explode.

As the joke goes:

People who stay up late are less likely to suffer from Alzheimer's disease because they are more likely to die early.

Many times, what you stay up is not the night, but your blood, your spirit, and your precious life.