TEL AVIV — Vanity trumps health when it comes to why people start exercising. This surprising finding emerged when Tel Aviv University researchers took an unconventional approach to studying fitness ...

Scientists confirm that your mileage may vary in how you respond to workouts, but everyone benefits in the end.

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...