I’ve always been pretty skeptical of viral TikTok workouts like the 12-3-30 workout. They can be created by anyone with an account, after all, so their merits aren’t usually backed by science. But the ...

Trainers explain how to complete it successfully.

The 12-3-30 workout has taken over TikTok, which is a testament to the algorithm and a few influencers’ abilities to game it. It’s really just treadmill walking, with specific parameters and overblown ...

Share on Pinterest The 12-3-30 treadmill challenge is trending on TikTok, but can the viral workout really help you lose weight? M_a_y_a/Getty Images TikTok users claim the 12-3-30 treadmill challenge ...

Here’s what to know about the 12-3-30 workout. By Danielle Friedman The treadmill doesn’t get a lot of love. But with cold weather forcing many people indoors these past few months, it makes sense ...

Finding time to exercise amid busy schedules challenges even the most health-conscious individuals. Yet research consistently shows that carving out just 30 minutes daily for physical activity ...