Dietary restriction or good genes: new study tries to unpick which has a greater impact on lifespan

By Bradley Elliott, Senior Lecturer in Physiology, University of Westminster

As people who research ageing like to quip: the best thing you can do to increase how long you live is to pick good parents. After all, it has long been recognised that longer-lived people tend to have longer-lived parents and grandparents, suggesting that genetics influence longevity.

Complicating the picture, however, is that we know that the sum of your lifestyle, specifically diet and exercise, also significantly influences…

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