I hope this question makes sense. I read where high levels of radiation exposure can cause cancer, but if that is the case, how does radiation treatments cure cancer? Thank you for reading.
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How cancer happens:
every single moment cells in you body trues to duplicate. Some if them are duplicated without controll. Such cell are killed by immune system. This is totally normal process.
Radiation provides random small mutation. Most of mutation celles are killed on site. However at some point there will appear uncontrolled cells which looks like normal for immune system. At this point lumps are starting to form and cancer established.
Yet such cells are not normal and are frigile. With strong radiation dose they become damaged and then recycled by immune system.
People who expirienced cancer once have to take special medication for rest of their live, because cancer returns
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