What do you mean by the slogan on the blood donation cart, "Donating blood in an appropriate amount is good for your health"?

I am speaking based on what I know.

Blood generally has a 120-day cycle from birth to death, and will naturally metabolize and die after 120 days.

Generally, human blood is mostly stored in the liver and other parts of the body. If the human body bleeds, blood will be provided by these parts, and then these organs will regenerate blood. If an appropriate amount of blood donation is given, it will not cause damage to the body, and it will also damage the liver. Hematopoiesis, being able to move, is a good exercise for the body's hematopoiesis function. . What I said was not professional enough.

According to scientific measurements, the total body blood volume of an adult is equivalent to about 8% of the body weight, that is, the total blood volume in the body of a person weighing 50 kg is 4000 ml. Each time you donate 200 ml of blood, it only accounts for about 5% of the total body blood; only 80% of the blood in the human body usually circulates throughout the body, and 20% (about 800 ml) of blood is stored in small blood banks such as the liver, spleen, and skin. Reserved. After donating blood, the blood in these reserves will be quickly released into the blood circulation. In addition, the rate of bone marrow hematopoiesis will be accelerated after donating blood. Therefore, donating blood according to regulations will not affect your health.