This Month's Fitness Challenge Theme Is: Stairs
by Beth Skwarecki on Vitals, shared by Beth Skwarecki from Lifehacker on (#4EE70)

This month, we're challenging you to take the stairs. All through the month of May, we'll have stair-centric exercises and workouts for you to add into your routine. And the first one is, simply: walk or run up a bunch of stairs.