Dr. Quan told to them that herb is a plant or plant part used for its scent, flavor or therapeutic properties. Herbal medicine is the oldest form of healthcare known to mankind. Herbs had been used by all cultures throughout history. It was an integral part of the development of modern civilization. Much of the medicinal use of plants seems to have been developed through observations of wild animals, and by trial and error. As time went on, each tribe added the medicinal power of herbs in their area to its knowledgebase. They methodically collected information on herbs and developed well-defined herbal pharmacopoeias. An herb is a plant or plant part valued for its medicinal, aromatic or savory qualities.

Substances derived from the plants remain the basis for a large proportion of the commercial medications used today for the treatment of heart disease, high blood pressure, pain, asthma, and other problems.Such as Healyh Care Formula,Hypertension Formula and so on. The herb plant or part of a plant used for its flavor, scent, or potential therapeutic properties. Includes flowers, leaves, bark, fruit, seeds, stems, and roots.

Traditional and modern uses of ginseng include:
Improving the health of people recovering from illness
Increasing a sense of well-being and stamina, and improving both mental and physical performance
Treating erectile dysfunction, hepatitis C, and symptoms related to menopause
Lowering blood glucose and controlling blood pressure

There are lots of Chinese Herb Tea that are good for health and prevent other diseases.