Meet Yin yoga. In this style of practice, we'll be working with the interconnective tissue and the ligaments that surround your joints -- all areas that are not normally nourished in more active styles of exercise. This 30-minute stretch is the perfect complement to cardio, weight lifting, or HIIT workouts. Do it once or twice a week and watch your flexibility increase. Yin is the ultimate style of yoga for cross-training or to replenish the body and mind after stress or an injury. Dim the lights and get ready to relax, stretch and breath deeply.