Why are we less aware of our own bad breath than a person standing close to us?
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You get used to it. Your brain is very good at filtering out information it doesn’t actively need. For example, you can’t feel your toes right now, right? Your breathing? How about your temperature?
There’s this thing called nose blindness where your brain filters out smells that have been smelling for a while. This is why you can’t smell your own bad breath because your brain knows it’s there and been there for a while, and decides to ignore it.
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