antioxidant defenses. Oxidative stress can damage cells, proteins, and DNA and is believed to contribute to the biological processes associated with aging.
Researchers are also investigating whether differences in blood-group antigens and immune-system activity may influence the body’s response to infections, inflammation, and chronic disease.
However, evidence connecting specific blood types directly to greater resistance to oxidative stress or slower cellular aging remains limited. Much of the existing research shows associations rather than proof of cause and effect.
What Science Currently Suggests
Blood type may be an overlooked biological factor