Jiangnan has been known as the "land of fish and rice" since ancient times, and is rich in rice, fish and silk. According to legend, in ancient times, there were families on the Yangtze River who lived by breeding silkworms. There were only two old couples and a sickly son in the family.

Valuable Chinese medicinal materials are often prohibitive, but in fact, many affordable Chinese medicinal materials are also veryfu ling health benefits - Okayherb valuable for health preservation.