Learn how to calculate and improve your metabolic age with tips on exercise, diet, and stress management for better health.

We tested and ranked the best trail running shoes for every style and budget. Top picks include shoes from Nike, HOKA, and ...

The correlations of HR and RR with height and weight in each age group were calculated. All were small; the average correlations with height ... 27 the mean difference from the centile chart was 0.33 ...

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