system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Is lying natural human behavior or is it something that is taught, why do humans lie and what happens in the brain when we start a lie (are certain chemicals released/particular brain activity)?

In other words: What is a lie?
gpt
Lying is natural human behaviour. Society would soon fall apart if we were unable to lie as it is often beneficial to keep the truth concealed; for example, lying to ourselves allows us to function as sane human beings.

It's something that children work out how to do at a young age in order to avoid punishment, get what they want, etc. It's not taught - in fact, parents generally try to teach them *not* to lie.