Talk about a person who suddenly woke up when he could have slept in.

Sleeping in reasonably is a relaxation of body and mind, especially on weekends. But it is harmful to sleep late often.

First, sleeping late will disrupt the physiological rhythm. Normal people's endocrine and the activities of various organs have a certain day and night law. This biological law regulates people's various physiological activities, making people energetic during the day and sleeping well at night.

If you sleep late on holidays because of the law of life, it will disrupt the circadian rhythm in the body and make endocrine hormones abnormal. If this continues for a long time, you will be depressed and depressed.

Second, staying up late will affect the gastrointestinal function. Breakfast is usually around 7 o'clock. At this time, the food for dinner has been basically digested, and the gastrointestinal tract will contract due to hunger. People who love to sleep late would rather be hungry than get up early for breakfast. After a long time, they are prone to chronic gastritis, ulcers and indigestion.

Third, staying up late will affect the excitability of muscles. After a night's rest, my muscles relaxed more in the morning. Get up and exercise immediately after waking up, which can make muscles

Strengthening blood circulation and increasing blood supply are beneficial to thickening muscle fibers. However, people in bed are in a state of muscle tissue relaxation for a long time, muscle repair is poor, and metabolites are not eliminated in time. After getting up, they will feel weak legs and waist discomfort.

Fourth, babies who always sleep late will also affect their memory and reduce their learning efficiency after school. Therefore, "getting up at dawn" is a good living habit. Even on holidays, we should keep a normal life rule, go to bed and get up on time.

The sudden change of sleep habits will have a fierce impact on the hypothalamus responsible for hormone balance in the brain, which will lead to hormone imbalance and headache. And staying up late will miss breakfast, causing eating disorders.