First of all, proper blood donation will make users healthier and live longer. The proportion of fresh blood cells in people who insist on long-term moderate blood donation is significantly higher than that in people who don't donate blood because of the continuous stimulation of bone marrow hematopoietic system. Donating blood will reduce blood viscosity. The survey results show that the survival rate of blood donors is significantly higher than that of non-blood donors, and people who donate more blood live longer. People who insist on long-term moderate blood donation will be more sober, healthier and live longer.
Second, blood donation can reduce coronary heart disease. The results show that voluntary blood donation has a good long-term impact on the cardiovascular and cerebrovascular systems and has a positive preventive effect on reducing the incidence of cardiovascular and cerebrovascular diseases.
Third, blood donation can reduce the incidence of cancer. Iron is one of the indispensable elements for human body, but if the iron content is too high, exceeding the normal value of 10%, the probability of cancer will increase. The only way is to excrete too much iron through bleeding, thus encouraging men with too much iron in their bodies to donate blood regularly.
Fourth, blood donation can purify people's hearts. Sanskrit says: Saving a life is better than building a seven-level pagoda. Voluntary blood donors use their own blood to continue and save others' lives, comfort their souls and enrich their lives.