Peanuts are a common and highly nutritious food, which has the following effects and functions: First, it can lower cholesterol. Peanut oil is rich in linoleic acid, which can make the cholesterol in human body decompose into bile acid and excrete, avoiding the deposition of cholesterol in the body. The second point is that it can slow down the aging process. Zinc can promote the development of children’s brains and activate the brain cells of middle-aged and elderly people, so it can play a role in delaying aging and anti-aging. The third point is that it can promote cell development and improve intelligence. Peanut protein contains some amino acids that the human body needs, such as lysine can make children to improve intelligence, rich in amino acids to promote cell development, and enhance the memory capacity of the brain. The fourth point, to play a certain role in the prevention of cardiovascular disease. Peanuts contain some unsaturated fatty acids, lecithin and other components, can increase capillary flexibility, thereby preventing some cardiovascular-related diseases, such as heart disease, hypertension and so on. The last point, peanuts can also have the role of lung cough, can be used for some diseases like gas long asthmatic cough, cough with blood.