The latest craze in the fitness world—from gym culture, to nutrition planning, to recovery protocols— is hyper-personalized optimization. But is there really a benefit to at-home microbiome tests that ...

After testing countless devices for accuracy, comfort, and general value, these are the best fitness trackers I'd recommend.

Wouldn't it be great if you could just take a picture of yourself with your mobile phone and sew your own clothes—in exactly ...

Millionaire at 22, sold Sweat app for $400M. From Adelaide Greek roots to global fitness queen—repurchased it too!