> Cancer is just abnormal cell growth in the human body Bingo. It's an inherent problem in things that constantly copy themselves and are subject to error in copying. Some copies will not have the usual growth limiter intact so will grow without restraint. That's bad. It's not some parasite or illness. Tough, [some animals have less incidence of cancer](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6015544/).