Yin and yang Health Dictionary

The 2 opposing and interdependent principles that are fundamental to traditional Chinese medicine and philosophy. Yin is associated with the female, darkness, coldness, and quiescence; yang embodies qualities of maleness, brightness, heat, and activity. In a healthy body, yin and yang are in balance. The concepts of yin and yang are also central to the theoretical basis of macrobiotics.

Basic concepts in traditional Chinese medicine and philosophy. Yang represents active, positive masculine qualities. Yin embodies passive, negative feminine qualities.