Here’s a reason I might have gotten cancer, I used: plastics with phalates and PCBs, pesticides, herbicides, fire retardant items, non stick pans, cars with carbon monoxide emissions, photo sensitive chemicals, hair color, hair straightener (okay, dumb), formaldehyde nail products, food dye, gas stove, shampoos/conditioners/creams with additives and benzene, dry cleaned clothes, used air fresheners, candles, oven cleaner, VOCs in new carpet, held thermal paper receipts, and ate charred/fried food acrylamide/HCA. I also worked in buildings with asbestos, lived in big congested cities, and breathed in campfire smoke. Just a short list of some of the carcinogens.
Oh, and, yo-yo dieted most of my life.

Even Claude couldn’t figure out which of these caused my cancerous cells.