The ancient Chinese practiced copromancy, the diagnosis of health based on the shape, size and texture of feces. So did the Egyptians, the Greeks and nearly every ancient culture.
원문출처 : http://www.cnn.com/2017/05/03/health/poop-physics-partner/index.html
원문출처 : http://www.cnn.com/2017/05/03/health/poop-physics-partner/index.html