My mother died of bowel cancer when I was a teenager, it has spread to her bladder, lungs and liver. I still wonder how it actually killed her. What went wrong that stopped her heart pumping and lungs breathing?
Cancers can expand so rapidly by being huge consumers of food, resources, and space that would otherwise be used by other normal cells. As normal organs face pressure (literal) and competition in food/air, they begin to fail.
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