The recipe is called "Polygalae Honey". Take 50g of Polygalae Radix, add water, decoct, remove residues, decoct the decoction again, add white honey while frying, and mix with chopsticks until dripping into juice. Details: the first step is to add 800ml of water, remove the residue when 400ml is left, and add about 400 grams of white honey. Taking a spoon every morning can enlighten people and enhance their memory.