My family is in the business of Chinese medicine. As you said above, most of my family have it. I don't think it is good enough. Jujube, medlar and longan are all hot foods, and their main function is to tonify qi and blood. American ginseng and ginger are also hot. Chrysanthemum is cool, clear away heat and improve eyesight, which is more suitable for drinking in winter, but not so good in summer. Generally, red nourishes blood, black nourishes kidney and white nourishes lung. Just pay attention every day.