2. Join 30 Day Challenge

We’ve done 3 super successful 30 day challenges (flat abs, butt lift, thigh slimming) and now we are headed to our day Sleek Arms! Your moves are: Arm Circles Arm Raises Single Chest Press Pulse Half Cobra

Greatist and Fitbit's 30-Day, Just-Do Something Challenge

There's Still Time to Join Our 30-Day Just-Do-Something Challenge!

Join Our Just-Do-Something Challenge! Join Greatist and Fitbit's Just-Do Something Challenge for your chance to WIN a Fitbit