Kayla Itsines’s Sweat App offers guided workouts, nutrition tips, and community support, and PS staffer Haley Lyndes put it to the test.

Claude AI now connects with Apple Health, letting users talk through their fitness and health data to spot trends, understand metrics, and get plain-language insights instead of raw numbers.

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.