Talk about flexibility, strength or curve, our very own Scarlett Johansson, who is popularly recognised as Black Widow has it all. Johansson is an American actress who has proved her dedication for fitness in the recent past, and we hope she continues to do so. Even after becoming a mother, she did not gain excessive weight and she also gave a statement to SHAPE that she thinks breastfeeding is the best way to lose weight. She prefers full body workout than practice Yoga or Pilates. She encourages an athletic workout for the whole body and engages in strength training, endurance training and stability training. She likes to sweat a lot.