Can odour sensitivity go away?

I used to think I would be insufficient as a wife and mother because my low tolerance of unpleasant smells meant I night not be able to clean up vomit without throwing up from the smell.

Now my dad can smell things I can't so I might be getting stronger. I read some people are wired so that even the smell of dead bodies does not bother them, they can handle any type of smell, no matter how bad it is.

Can odour sensitivity go away?
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