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Regular Blood Donation May Lower Cancer Risk, Study Finds. A new study from the Francis Crick Institute suggests that people who donate blood regularly may develop genetic changes that could reduce their risk of blood cancer. Researchers compared men in their 60s—some had donated blood frequently for 40 years, others just a few times. Both groups had similar levels of natural mutations in their blood, which increase with age but frequent donors had different types of mutations. These changes, triggered by the body replenishing lost blood, may help protect against diseases like leukaemia. While the findings are early, scientists say they offer fascinating insights into how blood cancers form and how healthy habits like donation might play a role in prevention.
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