Genetics and human lifespan study 2026

For years, the health world has been obsessed with the idea that we can “lifestyle”our way into living forever. We were told that genes only accounted for a tiny 20% of our longevity. However, a groundbreaking study published in the journal Science (February 2026) has just proven that we were essentially looking at the data upside down. Researchers from the Weizmann Institute and Karolinska Institutet have revealed that genetics actually dictate more than 50% of your lifespan. The reason scientists got it wrong for so long is actually quite simple: “noise.” Earlier studies didn't separate natural biological aging from “extrinsic”…