The latest in a long string of TikTok exercise variations has people swearing by the "6-6-6" routine. Walking trends have exploded across social media, from the 12-3-30 treadmill challenge to the rise ...

When you’re opening up shop, you have to get there early to turn on the lights, restock supplies, and get things up and running before customers arrive. For the uninitiated, this is part of the ...

The 3x3 by 12 routine recommends hitting certain health metrics before noon. The routine is praised for its simplicity. Doctors point out that the routine is not based in science, but that there may ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...