Blood donations twice or at times a year can help us maintain a healthy cardiovascular system, avoid strokes and blood clots, reduces risk of cancer and also helps fight obesity.
Thickness of blood or blood viscosity is a very prominent factor that determines the cardiovascular health. The viscous and sticky blood creates much more friction while moving through the blood vessels is damaging the vessels. The iron in the blood is oxidizing the blood. Increased oxidation in blood results in cardiovascular problems.
Iron can also increase the free radical damage in the body and it can be a reason for cancer. Regular blood donation helps reduce the chances by a great extent.
The blood donors donating a regular pint or quantity of blood burns upto 650 calories per donation.