Get ready to take your workout to the next level with Jessica Alba's CrossFit trainer, Yumi Lee. This workout is excuse-proof: you don't need any equipment, and it's only 10 minutes long, but it will definitely get your heart pumping. No need to be intimidated by CrossFit either: Yumi provides level-appropriate variations for every move. Embrace the CrossFit philosophy and compete with yourself. Try to do more reps of each move when you do the second round. Press play, and get ready to sweat!