Spirulina is an internationally recognized food for adjuvant radiation therapy. Spirulina polysaccharide can enhance the immunity of the body and effectively alleviate the inhibitory effect of radiation on the proliferation of bone marrow cells. 1986, the nuclear power plant in Cerbelli, the Soviet Union exploded, and the relief materials sent by the Japanese were spirulina. In modern society, electromagnetic radiation such as mobile phones, televisions and computers makes us have nowhere to hide. These invisible killers always threaten people's health. Most people who come into contact with computers will have symptoms such as dry eyes, headache, irritability, fatigue, difficulty in concentration and spots on their faces. The appearance of spirulina allows human beings to enjoy modern civilization without wearing armor and face all kinds of radiation calmly.