The Yellow Emperor's Inner Canon (Huangdi Neijing) is the foundational text of Chinese medicine. Its core idea: harmony between humans and nature.
Spring: sleep and rise early, stretch the body, align with "birth." Summer: sleep late, rise early, align with "growth." Autumn: sleep early, rise early like a rooster, align with "harvest." Winter: sleep early, rise late, wait for sunrise, align with "storage."
"The supreme physician treats disease before it arises, not after it has arisen." Prevention beats cure.
Health is yin-yang balance. Yang deficiency feels cold; yin deficiency feels hot. Not supplements — adjusting lifestyle.