Some of the biggest news in exercise science last year concerned the tiniest effects from physical activity, which does not mean that the effects were inconsequential. It means they were microscopic.
We found out, for instance, that exercise changes how our cells communicate with one another, as well as how rapidly they age. This new research began to detail the many, pervasive ways in which exercising alters the inner workings of our bodies and contributes to better health.
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