(Reuters Health) – Yoga seems to provide small improvements in symptoms and quality of life in people with asthma, according to a new review. The practice of yoga includes breathing exercises, postures (called asanas), and meditation. Yoga has been proposed as a treatment for a variety of medical conditions, including asthma, but scientific studies have shown inconsistent results. Dr. Jin-Ling Tang from The Chinese University of Hong Kong’s Prince of Wales Hospital looked at the…