Staying up late will keep the cerebral cortex excited and reduce the oxygen and moisture retention of hair. Scalp tissue only relies on the collateral branches of carotid artery for blood supply. The more excited the brain is, the more blood transported from the carotid artery will be concentrated in the brain. On the contrary, the blood delivered to the collateral branches will decrease continuously, and the hair tissue will become inelastic due to insufficient blood supply and be in a state of hunger and thirst for nutrition. Without nutrition, hair will naturally become scarce, and insomnia will lead to hair loss.

In addition, irregular work and rest, endocrine disorders will lead to hair loss, malnutrition will also lead to hair loss. Some people will control their diet in order to keep fit, which is likely to cause malnutrition. If the body is deficient in protein, iron and zinc, it should be noted that long-term malnutrition will lead to deficiency of qi and selenium in hair roots, as well as some metabolic diseases such as arginine succinate, hypercystinuria, hereditary uremia and methionine metabolic disorder.

The health of hair is related to many of our daily behaviors. Poor diet may lead to hair loss, and poor rest may also lead to hair loss. If you want to stay away from hair loss, you'd better eat scientifically and avoid staying up late, so that your hair can have a healthy foundation.

I hope it will be helpful to you and I hope it will be adopted.