Rashelle Mason’s left arm was numb. Her stomach shut down to the point where she no longer could take even small sips of an electrolyte drink from a straw. Her mind started to fight her, too, with ...

A grandmother from Massachusetts has just set a new world record for holding a plank for longer than five minutes. Sarah Blackman, who was inspired to work on her strength and fitness two years ago ...

How long can you hold a plank — and how does it stack up to others in your age group? That’s the question that was posed on "Fox & Friends" Thursday morning, when co-hosts Brian Kilmeade and Lawrence ...