A viral "100 kettlebell swings a day" challenge promises fitness results but may cause injury without proper form, recovery, or progression. Experts recommend safer, smarter training strategies ...

Trainers offer insights on how much you can really do in a day—and ways to get more activity without upping your injury risk.

The former Dallas Mavericks star has been intermittent fasting since June. Experts weigh in on what it can (and can’t) do for ...