Crayfish is fresh and fishy. The main reason for this feature is that crayfish is rich in protein, and its protein will be metabolized into histamine and other substances under the action of bacteria, which is easy to induce diseases.
Stale spicy crayfish will be exposed to a large number of bacteria, which is more prone to high histamine content. So crayfish belong to hair.
Hair loss is a unique concept in traditional Chinese medicine, and foods that are easy to induce some old diseases or aggravate existing diseases are collectively called hair loss. Hair is also food under normal circumstances, and moderate consumption will not cause side effects or discomfort to most people, but will only induce some special constitutions and some related diseases.
Many foods in life are hair. Hair products generally come from edible fungi, seafood, vegetables, fruits and livestock. Liquor, peas, soybeans, tofu, tofu brain, fishy smell and other foods are also hair products.