Surya Namaskar stimulates almost every system in your body  the cardiovascular system because it keeps the heart strong and, the digestive system as well as the nervous system.     It also makes endocrinal glands like the thyroid, parathyroid and pituitary glands, function normally.     Practising the Surya Namaskar regularly is also known to ease stress and giveyou peace of mind besides increasing your levels of concentration.  .