Is blood donation harmful to my health? For a healthy person after a strict health check, each blood donation of 200 ml, up to 400 ml, and two blood donations of not less than three months, will not affect the health of the body. Now we will analyze whether blood donation has any effect on the body from the following aspects.
There is no effect on the body in terms of blood volume
A recognized whole-body blood volume accounts for about 8% of body weight. A 50 kg adult has a total blood volume of about 4,000 ml, and the amount of blood donated is only one twentieth of the whole-body blood volume, according to this ratio of blood donation, the human body can quickly restore the relative stability of blood, such as water and inorganic salts in blood can be replenished by tissue fluid infiltration into the blood vessels in 1 to 2 hours, and protein in blood is synthesized by the liver. The amount of protein in 200 ml is only equivalent to the amount of protein contained in 6 eggs and can be easily replenished.
No effect on the body in terms of blood circulation
When the body activity increases or bleeding occurs, the blood stored in the spleen and other organs will enter the blood circulation, and under the physiological compensatory effect, the heartbeat will be accelerated, the peripheral blood vessels will be contracted, and the inter-tissue fluid will infiltrate into the blood vessels. The blood volume can therefore be restored within minutes to hours without affecting the normal blood circulation and blood pressure.
There is no effect on the body in terms of blood metabolism
The average life span of normal red blood cells in the human body is 120 days; white blood cells are 13 days and platelets are 8-9 days. Aging blood cells have to keep dying, and there are bone marrow cells to replenish them. This metabolic process also occurs in the body of people who do not donate blood. After blood donation, the bone marrow is stimulated and the hematopoietic function is vigorous, and hematopoiesis will be enhanced, so that the blood composition will be maintained at a relatively constant level, and therefore it will not affect the body.
Benefits of blood donation in moderation
Moderate blood donation can promote human metabolism, strengthen immunity, stimulate the hematopoietic organs of the human bone marrow, so that they always maintain the same vigorous hematopoietic state as in youth, and receive the effect of prolonging life, as well as preventing cardiovascular diseases such as atherosclerosis.
