Your genes have little to do with how long you will live, according to a new ‘family tree’ study of more than 400 million people.
DNA determines many of our traits, and as genetic analysis becomes better and more accessible, it’s tempting to think it can predict our health – and what we will pass on to future generations.
However, longevity is influenced as much – if not more – by environmental factors, like your diet and whether or not you smoke, as well as social factors such as wealth that are even harder to factor into the equation.
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