TO LIVE longer, skip lunch rather than skipping off to the treadmill. In rodents, eating less prolongs life and now we know one of the key molecules involved.
It鈥檚 probably down to depressed insulin levels, which regulate blood glucose. While at the University of Alabama in Birmingham, Derek Huffman kept mice on a variety of diets and exercise regimes. He found that insulin was lowest in animals eating the least, even if they didn鈥檛 exercise (American Journal of Physiology 鈥� Regulatory, Integrative and Comparative Physiology, ).
We don鈥檛 yet know if the effect translates to humans, so keep exercising, says Huffman. 鈥淭he benefits of exercise in humans are overwhelming.鈥�
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