Study Reveals Genetic Factors Play Significant Role in Human Longevity
A recent study led by Uri Alon, a physicist-turned-systems biologist at the Weizmann Institute of Science, has re-evaluated the role of genetics in human lifespan. The research, published in Science, suggests that genetic factors may account for about half of the variance in human lifespan, a significant increase from previous estimates of 20%. The study utilized mathematical models to analyze data from Swedish twins born between 1900 and 1935, revealing that earlier studies underestimated genetic influence due to high extrinsic mortality rates in the past. These findings challenge the long-held belief that lifestyle factors predominantly determine longevity. 
