A man in a blue tank top performs a deep stretch at the gym, focusing on flexibility and mobility.

Flexibility Is the New Longevity Metric — And Here's How to Train It

One of the quietest shifts in wellness this year: how well you move is becoming a top marker of how well you're aging. The good news — unlike most health metrics, this one you can train. Here's why mobility predicts longevity, and why resistance stretching beats the classic reach-and-hold.

Amy Mastrogiuseppe

16 hours ago3 min read

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