Hawthorn belongs to Crataegus of Rosaceae, and its anti-aging effect ranks first among fruits. Deciduous trees, up to 6 meters high. Distributed in Shandong, Shaanxi, Shanxi, Henan, Jiangsu, Zhejiang, Liaoning, Jilin, Heilongjiang, Inner Mongolia, Hebei and other places. Hard core, thin pulp and slightly sour taste. Fruit can be eaten raw or made into preserved fruit cakes, dried and used as medicine. It is a unique medicinal and fruit tree species in China. It has the functions of reducing blood fat, lowering blood pressure, strengthening heart and resisting arrhythmia. It is also a good medicine for invigorating spleen, stimulating appetite, promoting digestion, promoting blood circulation and resolving phlegm, and has a good effect on chest diaphragm, spleen fullness, hernia, blood stasis and amenorrhea. Vitexin, a flavonoid in hawthorn, is a kind of drug with strong anticancer effect, and its extract has certain inhibitory effect on the growth, proliferation, infiltration and metastasis of cancer cells in vivo.
Ancient poetry, that is, China's ancient poetry, refers to China's poetry works before the Opium War 1840. Its original intention is a poem written by the ancients. Broadly speaking, China's ancient poems include poems, words and Sanqu written by the ancients. In a narrow sense, ancient poetry only refers to ancient poetry and modern poetry written by ancient people.