The unique spicy taste and fragrance of ginger have medicinal components. China has used it as a crude drug since ancient times to warm the body and treat cold and colds. Gingerone with fragrance and gingerol with spicy taste can dilate peripheral capillaries, make blood stasis unobstructed, and thus warm the body, and the effect can last for 3? 9? 14 hour. In addition, it can promote sweating, activate metabolism and lower blood pressure and cholesterol. In recent years, it has also been reported that the spicy components of ginger have anti-cancer effects. Its mechanism has not been completely confirmed, but it is speculated that it may be related to the role of ginger in preventing genetic material from being destroyed by free radicals. In addition, the gingerol contained in it can promote the secretion of gastric juice and help digestion. In this way, a small piece of ginger can play a great role. No matter how healthy the food is, eating too much will often be counterproductive. Ginger has a strong sweating effect while promoting blood circulation. If you eat too much, you may sneeze a lot, causing allergic symptoms like a cold, or you may get angry and have a fever. Taking a small amount every day can give full play to the effect, so it is good to control the daily amount at about15g (a thumb-sized ginger is about15g). Ginger has the effects of dispelling cold, removing fishy smell, stopping vomiting, sweating, relieving cough and stopping vomiting. Ginger peel is good for diuresis, which can cure bacillary dysentery. Ginger peel is left in hot dysentery, and cold dysentery is scraped off. Because of the rise of ginger, it is not suitable for eating at night, because the popularity converges at night, so it is not suitable for rising in the opposite direction. Decocting three slices of ginger and red dates 10 is often effective in treating gastric and duodenal ulcers and diarrhea due to deficiency of spleen and stomach. What must be explained here is that people who get angry and people with yellow and dry tongue coating should not eat ginger.