Could your blood type influence how long you live? A recent Japanese study suggests it might.

Researchers examining 269 centenarians in Tokyo found blood type B was more common among them. A separate study supported this, showing type B individuals had fewer signs of organ aging, likely due to better cell regeneration and stress response.

Blood type B has the B antigen and anti-A antibodies, which may help protect against oxidative stress—an aging factor. However, it’s also linked to slightly higher cardiovascular risks, making healthy habits crucial.

Blood types also affect disease risk. Types A, B, and AB are more prone to heart attacks and pancreatic cancer, while type O offers some malaria protection but may be more vulnerable to strep infections.

Although some promote blood type-specific diets, scientific support is limited. Regardless of blood type, the best tools for longevity remain consistent: a healthy diet, regular exercise, and effective stress management.