People with this blood type are more likely to live to 100 years old…see more

blood group determining whether someone becomes a centenarian. StudyAnatomy

Longevity is not controlled by one factor. It is shaped by a combination of genetics, lifestyle, environment, healthcare access, and even luck. Blood type may play a very small role in certain health risks, but it is far from a reliable predictor of how long a person will live.

To understand this properly, we need to break down what blood types are, what research actually shows, and how aging is influenced by multiple overlapping systems in the body.

What blood type actually means

Blood type refers to specific proteins and sugars—called