system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can't people seem to smell their own body odor when it's over-powering to everyone within nose-shot?

It's mortifying to think that I've been on the wrong end of a smelly pit and didn't know it.  Considering that we seem to be immune to our own brand, Is there any way to tell if you smell?
gpt
Your body is very good at adapting to things. As a side-effect to this we sort of become incapable of noticing things that we've been exposed to for a long time.

This is why:

- Mint chewing gum loses its taste the more you chew it faster than it actually lose s its taste. If you were to give a chewed gum to someone else, they'd still taste it minty.

- Music in your car starts sounding lower and lower the more you listen to it as you drive. By the end of a long drive it's so loud that if you were to leave the volume as is and get in the car the next day, it will be too loud. This is also a problem at live concerts where guitarists tend to keep upping the volume if they were left to their own devices.

- If someone comes into your house and smells gas, believe them. Don't say "I can't smell anything." It's there. You've just gotten used to it.

Your body gets used to stimuli. Smell is one of those things, but everything else works mostly the same way.