Was there any harm in working night shifts last month?

Night is the time for people's bodies and various organs to rest. This is people's biological clock. If people violate this biological clock, it will cause great damage to various organs. Once an organ is damaged, people's various body functions and health conditions will decline. So staying up late is the worst habit, but some people need to work night shifts frequently due to work reasons. So is working night shifts for a month harmful to the human body?

Harm 1: Decreased immunity. If you often stay up late, feel tired, and lack energy, your body's immunity will decline. Symptoms of autonomic nervous system disorders such as colds, gastrointestinal infections, and allergies will also come to you unexpectedly. Moreover, the direct symptoms of staying up late frequently are dizziness, inability to concentrate, and even migraines at work the next day.

Harm 2: Gastrointestinal crisis People who stay up late to work overtime easily feel tired, and eating "midnight snacks" can be a major source of energy for those who stay up late. However, "midnight snacks" may cause a crisis to the stomach, which makes people have to worry about, because the lifespan of human gastric mucosal epithelial cells is very short, and they need to be renewed and regenerated every 2 to 3 days on average. This process usually takes place at night when the gastrointestinal tract is resting. If you often eat at night, the gastrointestinal tract will not get the necessary rest and the repair of the gastric mucosa will not be able to proceed smoothly. Moreover, when sleeping at night, the midnight snack stays in the stomach for a long time, which can promote the secretion of a large amount of gastric juice and cause irritation to the gastric mucosa. Over time, it can easily lead to erosion and ulcers of the gastric mucosa.

Harm three: Risk of heart disease. Studies have shown that it is not as easy as most people think for people with disordered work and rest schedules to adjust their bodies. Not only will their tempers become worse, but their chances of getting heart disease are also higher. Because the human body's biological clock is not affected by light or clocks. Especially organs like the heart will not be able to adjust to staying up late just because they rest during the day. Therefore, if you "reverse day and night" for a long time, it will increase the risk of heart disease.

Harm 4: Obesity Eating after 9 pm is generally called "midnight snack". There are two types of autonomic nervous system in the human body: sympathetic nervous system and parasympathetic nervous system. The sympathetic nervous system makes the digestive organs work frequently during the day when the body is active, promoting digestion and absorption; at night, the parasympathetic nervous system is active, allowing the body to rest while the nutrients taken in are stored in the body. Eating at night will not only make it difficult to fall asleep, but also cause loss of appetite the next morning. The resulting nutritional imbalance will cause obesity.

Harm 5: Refreshing yourself is more harmful to your mind. When you have to work overtime or stay up late, do you first think of having a cup of coffee or strong tea to refresh yourself? Caffeine can indeed make people feel energized, but it is not necessarily effective in improving work efficiency. Even if it is useful, the effect can only last for a short time. Many people do not sleep when they should, but rely on coffee or tea to stay awake. However, at night, the body's parasympathetic nerves are active, slowing down the heart rate and gastrointestinal motility. Drinking coffee and tea both stimulate the sympathetic nerves, which can easily cause autonomic nervous system disorders in the internal organs. Although caffeine can refresh you, it will consume the B vitamins in the body that are related to nerve and muscle coordination. People who lack B vitamins are more prone to fatigue and are more likely to form a vicious cycle and develop a habit of addicting tea and coffee. The amount they need becomes greater and greater, and the effect becomes worse.