system
Given the following post, respond as if you're commenting on Reddit:
human
How can an animal eat its own kind with no side effects but human cannibalism causes brain damage?

Deep down we're all 'animals'.
gpt
It isn't the human flesh that causes brain damage, it is the risk of parasites/prions in the human flesh.  Thoroughly cooked human flesh won't hurt you, but if it is under cooked or you eat infected brain matter (as with the cows who got mad-cow disease) then you are at risk.

Generally you only find cannibalism in less developed areas and so the risk is greater.