system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is cannibalism detrimental to the body? What makes eating your own species's meat different than eating other species's?
gpt
Your own species meat is infected with diseases that can also infect you, by definition.  (Conversely with other animals, some but not all diseases can be spread by under-cooked meat.) There are also some degenerative diseases that are spread by mis-shaped proteins, which you can generally only get by eating a human brain.