human
I've been hearing about the Yin-Yang theory in Chinese medicine. Can you explain it to me?
assistant
The Yin-Yang theory is a philosophical concept that describes how the universe works. It states that everything has two aspects, yin and yang, which are constantly changing and interacting with each other. Yin represents dark, feminine energy, while Yang represents light, masculine energy. These energies can be seen as opposing forces within nature. For example, nighttime is associated with yin, while daytime is associated with yang.