Guan Gua You Yue, the Autumn Equinox is the fourth solar term of the fall season. To the sun reaches 180 degrees of yellow longitude for the autumnal equinox. Doo finger for the autumnal equinox, the north and south hemispheres day and night each half evenly divided, so the name of the autumnal equinox. Mid-Autumn Festival is the middle of the autumn, half of the autumn, for the lunar calendar year in the big festival. Autumn is divided into day and night are equal, health in the spirit of the principle of balance between yin and yang, to maintain the body yin and yang secret. Nourish the heart: it is appropriate to cultivate optimism, convergence, eliminate autumn sorrow. It is advisable to eat high-protein foods, such as milk, eggs, meat and so on. Eat bananas, chocolate, etc., drinking coffee, green tea, etc.. Mid-Autumn Festival and National Day, family reunions, respect for the elderly and love for the young, and have a good time. Physical well-being: It is good to do more exercise and go on trips. Diet more sour and pungent, sour astringent lung qi, pungent venting lung qi. Make the lung qi astringent and vent balance, in order to prevent lung disease. Autumn equinox should prevent stomachache, lumbar and leg pain, back pain, joint pain, colds, coughs and so on.