Ripped celebs like Frank Grillo, Dave Bautista, Christopher Meloni share their workout secrets.

There’s a lot of misinformation mucking up the fitness side of social media. But there’s also some humble, actionable stuff out there if you know where to look (and your algorithm isn’t cooked).

Denise Austin, 67, shared a “fit over 50” workout for “boosting” the “metabolism.” The fitness star demonstrated two “simple” yet “effective moves.” Austin says these moves also help increase your ...