system
Given the following post, respond as if you're commenting on Reddit:
human
Eli5 If bug killer can kill insects, how is it safe to spray all over your house and not be harmful to humans?
gpt
In general, modern pesticides are designed to target specific things that the insect has and mammals (like humans) don’t. Since we are pretty distant from insects genetically, there are numerous proteins in insects that either do not exist in, or are substantially different from ones, in humans.