Health preservation is to maintain the five internal organs and prolong life. The first level of health care is maintenance, which refers to following the law of life, adjusting the body function and external skin through moderate exercise and external nursing, and restoring the due function. The second level of health care is self-cultivation, which means broadening one's horizons, understanding one's mind and being well informed. Through the cultivation and promotion of one's own moral quality, one can rest and cultivate one's body and mind, thus achieving the purpose of self-cultivation. The third level of health preservation is nourishing, that is, following the laws of the four seasons of heaven and earth, deploying appropriate diet, nourishing and conditioning the whole body, so as to achieve the purpose of preventing diseases and prolonging life. Jujube gouqi tea is not usually drunk, but it may get angry after drinking for a long time. You can drink some Artemisia selengensis tea, which contains a variety of trace elements to help the body clear fire and detoxify. Usually drinking red jujube and wolfberry tea, adding one or two longan, three or four medlar and one or two red dates when soaking, will be lighter and milder, and the possibility of getting angry will be much reduced. Using a little tea to remove fire can be scientifically matched with health preservation.