Donating Blood Can Protect Your Health and Heart
March 01 2007
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Donating blood can help reduce your body's store of iron and may help keep your circulatory system healthy. However, this may not be effective for older people.
Over a period of six years, researchers examined more than 1,200 men and women, aged 43 to 87, who had peripheral arterial disease, a condition in which narrowed arteries reduce blood flow to the limbs. They were divided into two groups, and blood was drawn every six months to promote iron reduction from one set of patients.
When looked at overall, there was no significant difference between the two groups in terms of circulatory health. But when only the younger patients (43 to 61) were analyzed, there were fewer deaths, heart attacks, and strokes among those in the iron-reduction group.
Excess iron in the blood is thought to cause free-radical damage to arteries.