There is no such thing as how old is the best age to start taking ginseng. Ginseng has the effect of benefiting qi and strengthening the spleen, promoting the production of body fluid and moisturizing the lungs, and can be taken according to the doctor’s prescription. Ginseng is a kind of traditional Chinese medicine that belongs to the spleen meridian and lung meridian. Clinically, it is often used in treating spleen deficiency and body fatigue, loss of appetite, weakness after illness, deficiency of qi and yin, spontaneous sweating (involuntary sweating during the daytime, aggravated by the slightest movement of sweating), thirst, and dry cough of the lungs, etc. It is also used in treating the symptoms of spleen deficiency and stomach yin. Tai Zi Ginseng is used for deficiency of spleen qi and stomach yin (insufficient yin fluid in the stomach), and is often used together with yam and dendrobium to tonify spleen qi and benefit stomach yin; for treatment of qi deficiency and dryness of the lungs, coughing with shortness of breath and little phlegm, it is suitable to be used together with Nansha Ginseng, Cordyceps Sinensis, and Ophiopogonis, etc, to tonify the lungs and nourish the stomach yin. It is not suitable for those who are suffering from superficial solidity and evil. It is recommended to use Radix Panax Ginseng under the guidance of doctor’s diagnosis.