The kneel-to-squat challenge claims if you're able to do it, your biological age is under 30. Experts say it's not so simple.

What TikTok’s Viral ‘Shrimp Challenge’ Can Really Tell You About Your Fitness. The latest viral fitness test on TikTok, the shrimp challenge requires strength, mobility, and balance.

It’s called the “shrimp challenge,” but, unfortunately, there’s no food involved. Instead, it focuses on a difficult movement called the shrimp squat, and TikTok users have shared more ...