Eating well, exercising, driving carefully… Do these small actions really extend our life expectancy? According to a recent study, our longevity is determined for more than half (55%) by genes inherited from our parents. This figure is much higher than all previous estimates. Here's why.
Until now, studies on life expectancy had used a much lower estimate of the heritability of human lifespan, between 10 and 251 TP3T. This figure raised concerns among researchers. This is because, as a general rule, other human traits are inherited at around 501 TP3T. The same is true in studies on mice, where genes correlated with longevity are far more numerous. The researchers then postulated that a statistical bias could be unfairly skewing the results.
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