Yin yoga gently opens your body to improve flexibility. In particular, it works on the connective tissue in your pelvis, hips and spine. But more than that, yin yoga encourages you to let go of any goals or ambitions and just ‘be’ in the pose, finding stillness and deep relaxation. Instead of getting ourselves into the most pretzel-like postures, the yin challenge lies in holding each pose - for around five minutes.