Five internal organs: liver, heart, spleen, lung and kidney,
Corresponding to the five colors of blue, red, yellow, white and black, each color can raise a dirty one;
Corresponding to five grains: wheat, yellow rice, millet, brown rice and soybean, each grain is kept dirty;
Corresponding to five seasons: spring and summer are long, summer, autumn and winter, and each season is the best season to raise corresponding organs. For example, it is best to raise kidneys in winter;
Five aims: Anger hurts the liver, likes sadness, thinks about hurting the spleen, hurts the lung and fears hurting the kidney, so the mood should not be too indulgent;
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There are four pillars of sex and health: optimistic mood, moderate exercise, adequate sleep and a balanced diet.