Autumn is a time of gathering and harvesting. Animals run around collecting food, and plants collect and condense nutrients into seeds. Yang qi was rising and flourishing in spring and summer–vaporizing the yin water in the environment to create moisture, and now it retreats inward into “storage mode,” resulting in cooler and dryer conditions. Yang begins to give way to yin. Autumn corresponds to the Metal phase (jin 金) and the lungs. As a result, we want to focus on diet and lifestyle habits that promote moistening, support the lungs, and nourish yin. Sour tasting foods astringe and nourish the lungs, while pungent tasting foods disperse and purge. It’s best…