Playing tennis or other racquet sports reduces the risk of death in older adults – from any causes – by 16%, according to a study by the US National Cancer Institute. Running lowers it by 15%. But in keeping with a tide of other recent evidence, all physical activity, be it golf, walking, cycling, swimming or any aerobic exercise – also helps keep the grim reaper at bay. Researchers studied data from 272,550 people aged 59 – 82. How much do you need to exert yourself? Americans are recommended to engage on 1hr 30mins to 2hrs 30mins of “vigorous intensity” aerobic physical activity each week. But even those who do less can cut their risk of death by 5%.