It is true that cancer cells are afraid of high temperature because high temperature can cause damage to the cell membrane of cancer cells, resulting in increased permeability and eventually leading to cancer cell death. High temperature can also increase the activity of lysosomes in the cells, and the digestive enzymes released by the disintegration of lysosomes can cause further damage to cancer cells. High temperature can also increase the binding of proteins to DNA, which hinders the transcription process of cancer cells, thus causing them to lose their ability to proliferate. Research data also shows that when the heating temperature is 42-43℃, cancer cells can be killed after about 1 hour, which is the mechanism of applying heating therapy to anti-tumor treatment.