Why are we less aware of our own bad breath than a person standing close to us?
In: 70
This is a bitof a wider issue than odors. The brain sorts out all your sensory inputs and filters out all the ones that are constant and never change. You have blind spots in both eyes because your blood vessels and the ocular nerve are in between your cornea and your receptors, the brain filters them out without bothering you. Pain that never dulls or wanes becomes more invisible eventually unless it’s quite extreme.
There’s even a mechanism where it’ll filter out the feel from you touching your own skin. You get ticklish when others touch your skin because your brain can’t filter it out. You would constantly hear your own blood flow from the vessels close to your eardrums if your brain didn’t filter it out.
Your breath is just one more element to filter out because it’s irrelevant and/or constant and unchanging.
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