We all understand the importance of getting enough sleep for both mental and physical health, but it turns out that sleep posture may also play a significant role in achieving optimum health. In particular, a limited body of evidence indicates that sleeping on the left side may be the key to greater health and sleep for many people. The theory is based on Ayurveda, an Indian system of holistic health care and medicine. Why then is sleeping on the left side such a big deal? It turns out that the locations of certain organs may be advantageous for our stomachs, our backs, and even our hearts. These six advantages of sleeping on your left side may result from doing so are possible. 1. The lymphatic system is strengthened. As the left side of our bodies is the dominant lymphatic side, sleeping on the left side enables your body to better filter lymph fluid and waste through the lymph nodes. Western study has also discovered that sleeping on the left side helps facilitate the body's r...