Yoga classes will help you to improve flexibility and strength, mental health and concentration. Yoga stretches the muscles. Standing poses work the muscles in the lower body, and inversions, like downward dog and arm balances, strengthen the upper body. Many poses in yoga can strengthen the core muscles in your stomach and back. A strong core leads to better posture, which can help prevent back and neck problems. Ease stress and anxiety levels. Yoga involves breathing exercises that force you to pay attention to your breath. Deep breathing can help you relax almost instantly, which can help relieve stress and anxiety. Reduce low back pain. Practicing yoga for several months may ease chronic low back pain, help you function better, and enrich your quality of life.