This video follows a rigorous seven-day experiment designed to test the consistency and accuracy of the popular fitness ...

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 ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The last few years brought a wave of new watches focused on balance and overall health with so many ...