New studies suggest that blood type may influence how we age, adding a biological factor beyond lifestyle and genetics.

Type O individuals might have certain advantages, including a lower risk of heart disease, reduced cancer likelihood, and better blood flow, which may slow physical decline.

In contrast, types A, B, and AB could face higher inflammation, slightly greater risks of hypertension, and age-related neurological issues. However, healthy habits—balanced diet, exercise, and regular checkups—can greatly reduce these risks.

Differences in oxidative stress and immune function may also affect how cells resist aging, with some blood types showing stronger resilience.

Still, experts emphasize that lifestyle matters most: good nutrition, rest, activity, and stress control remain key to aging well.