Blood donation may improve donor health, study finds

A new study suggests that donating blood not only helps patients but may also improve the health of donors. Research from the Francis Crick Institute in London indicates that regular blood donations could lower the risk of blood cancers and improve insulin sensitivity. The study looked at two groups of healthy male donors in their 60s. One group donated blood three times a year for 40 years, while the other group donated only a few times. Both had similar genetic mutations, but the frequent donors had mutations not usually linked to cancer. These findings suggest that donating blood may promote the production of healthier blood cells. Each time someone donates blood, their body replaces lost blood cells, which may lead to healthier and stronger cells over time. In addition, some studies indicate that regular blood donation could reduce blood viscosity, helping lower the risk of heart disease. It may also help regulate iron levels in the body, reducing the risk of complications related to excess iron. Donors receive a mini health check each time they give blood, as their blood pressure and other vital signs are monitored. However, it’s unclear if the health benefits come directly from donating blood or if they are due to donors already being healthier individuals. Despite this, the need for blood donations is critical. The UK's NHS Blood and Transplant has highlighted a worrying shortage in blood supplies. If future research shows that blood donation benefits donors as well, it could encourage more people to give. The main reason to donate remains simple: it saves lives.