Eli5: Why are peoples’ own noises and smells usually dialed down, such as not being affected by their own snoring and not noticing their body odor?

Question

Why does the brain seems to dial down things that we produce; even the obnoxious snoring or noises made while sleeping don’t affect us? Similarly, people don’t usually get annoyed by their own talking or yelling to themselves.

In: Other

Answer 1

Novelty makes us pay attention to things. After a while we block it out. Think of your house smell vs smelling someone else’s house. The same with sound, people that have lived all their lives in noisy places tend not to pay attention to them.