Sports have varied and varied throughout the ages, but yoga has always been around for more than 5,000 years. And the benefits of yoga are multiple, it does more than burn calories and flexibility the muscles of the body. It's a full-body physical exercise that combines strengthening and stretching, achieved with deep breathing and meditation or relaxation. There are over 100 different forms of yoga. Some are fast-paced and intense. Others are gentle and relaxing.