Walking or Pilates? Cardio or weights? Fitness advice loves to pick a winner. Performance expert Dr. Andy Galpin (drandygalpin) says the more useful question is what you want your workout to do, and whether you’ll keep doing it long enough to see results. He breaks down what strength training, HIIT, Pilates, and walking each do well, how hard you need to train to build muscle, and when cardio should come before weights. Swipe to learn more and read the full interview on poosh.com. #poosh