The practice of yoga has several benefits at physical, emotional, mental and spiritual levels. On a physical level, it can build muscle strength, improve balance and flexibility, and help with weight loss. It can improve joint health and help with back pain. Yoga also improves posture and alignment, which can help prevent many other types of pain. Lower blood pressure and cholesterol are other positive side-effects of practicing yoga, as well as better circulation, respiration and better immunity. The practice of yoga also stimulates the lymphatic system, helping with the release of toxins out of the body and bringing oxygenated blood to the organs.