Perhaps you’ve considered the “Winter Arc” challenge, in which you set a series of personalized fitness and mental health goals to complete by the end of the chilly season. Or, you’ve read ...

Considering a new fitness challenge? Experts say there are benefits — but it's not for everyone. (Getty Creative) ...

Maybe you’ve seen that influencer boasting about completing 75 Hard, a challenge in which you do two 45-minute workouts a day and follow a diet, with zero cheat days. Perhaps you’ve considered the ...