February's Fitness Challenge is: Grip!
by Beth Skwarecki on Vitals, shared by Beth Skwarecki from Lifehacker on (#4YQEF)

We spend a lot of time working our arms, legs, heart, lungs-but maybe not our hands. Which is a shame, because grip strength is helpful for other exercises, and can be a goal in itself. We're going to start with the most popular, but paradoxically least useful, hand exercise: grippers.