People have been flocking to traditional Chinese medicine for thousands of years— here are 10 unexpected health habits that come from Chinese medicine.

The different organs of the body each have their own energetic signatures, according to Traditional Chinese Medicine, or TCM. This means that particular habits and emotions negatively affect each organ.

Chinese medicine balls, also known as Chinese Baoding balls, stress balls or exercise balls, are said to date back to the Ming Dynasty of 1368-1644, or earlier. While their origins are mysterious, their uses are pragmatic.