Blood donation reduces the risk of heart attacks and strokes, too. In a study published in the Journal of the American Medical Association (JAMA), researchers found that participants ages 43 to 61 had fewer heart attacks and strokes when they donated blood every six months.

People burn approximately 650 calories per donation of one pint of blood. A donor who regularly donates blood can lose a significant amount of weight, but it should not be thought of as a weight loss plan by any means. Upon donation, donors are tested for syphilis, HIV, hepatitis, and other diseases.

Testing indicates whether or not you are eligible to donate based on what is found in your bloodstream. Blood donation reduces harmful iron stores. Reduce the risk of developing cancer.
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