Is it time to reinvigorate your resolution to exercise more? Don't make fitness complicated; make it convenient. AARP Wellness Ambassador Denise Austin shows you how to work your core and upper body with this simple, modified version of mountain climbers in, of all places, your kitchen! How many mountain climbers can you do while brewing your morning coffee? Challenge yourself! To find Austin's tips and ways to lead a healthier, more active life, visit aarp.org/deniseaustin.