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Voluntary blood donation is the blood donation method which World Health Organization (WHO) and the International Committee of the Red Cross praise highly. Many countries in the world have done the clinical use of blood from voluntary blood donation; voluntary blood donation has become a sign of a measure of the degree of civilization of a society. Compared to paid blood donors, the quality of blood of blood donation can be guaranteed. It is conducive to the health and safety of the recipient. Most people could donate blood in the fixed blood donation by the line in various regions; many blood donation stations will dispatch Blood Collection to the schools, units, crowded areas, or meet district activities to solicit donors regularly. Is blood donation conducive to health? Metabolic activity of the blood is very strong, and a healthy person's total blood volume account for about 8% of body weight. About 4000 to 5000 ml total blood volume of an adult is about 4000 to 5000 ml. At usually, 80% of the bloods circulate in the heart and blood vessels to maintain normal physiological functions; another 20% of the blood is stored in the liver, spleen and other organs. Once blood loss or strenuous exercise, these bloods will enter the blood circulation system. If a person donate about 200-400ml a time, it just accounts for the total blood about 5%-10%. From a scientific point of view, regular donation will stimulate the bone marrow hematopoietic system; which could let the hematopoietic system of the body is in the active state. After blood donation, due to strengthen hematopoietic function, loss of blood cells will be replenished soon. So for a healthy person, according to blood donation, it will not have any impact on the body, more will not debilitating, it would be beneficial to health. Conditions of blood donation There have certain requirements for the physical health of the donors. Countries promote that age of blood donation age is about 18 to 55 years old; weight of male is more than 50 kg, women should be more than 45 kg. People should have normal health, pulse, nutrition, growth and the disease which the doctor thought they should not donate blood. The citizens who dental or the small operation is less than half a month or the body unwell are not suitable for blood donation. Our website will provide a discount as for gw2 gold, Buy Guild Wars 2 Gold and Guild Wars 2 Gold, so that more students can pay. This practice is favored by many players.
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