Some fish are born with two reproductive systems. For example, grouper has testis and ovary, but they are all fertilized in vitro. Grouper belongs to ovarian precocious type. So they are women first, and then they become men.
Fish's appendage is fin, which is an exercise organ for swimming and keeping balance. Fins are composed of branched fins and fins, which are divided into two types: one is horny fins, which are not segmented and branched, and are generated by epidermis and found in cartilaginous fish; The other is scale fin or bone fin, which comes from scales and is segmented, branched or unbranched, and is found in bony fishes. Fins are connected by thin fins.
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From the perspective of traditional Chinese medicine, fish such as hairtail, silver carp, eel and so on. They are all warm foods, and eating too much will easily lead to the accumulation of internal fire, which is what people often say.
Therefore, those who suffer from excessive internal heat and those who suffer from excessive fire due to yin deficiency should eat less warm fish. From the perspective of modern nutrition, fish is a high-protein food. If you eat too much and lack vegetables and fruits rich in vitamin C, it will lead to problems in the synthesis of collagen in the body, causing symptoms such as bleeding of gums and mucous membranes. But this is only for warm or hot fish, and a few fish with flat or cool nature, such as mullet, turtle, eel and carp, will not get angry.
Ducks are born in water and are cold. Similarly, fish are born in water, but most fish will get angry if they eat too much. Chinese medicine believes that fish in water will be extremely cold and hot on cloudy days; Ducks are on the water, but the surface is cold. In other words, although fish are cold-blooded animals, in order to survive in water, the body needs a set of mechanisms to cope with low temperature, which is why most fish are warm.
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