How do our brains process smell?

By Ellen Phiddian
Updated June 3 2022 - 1:49am, first published 1:00am
THE NOSE KNOWS: Researchers believe the way we perceive smell is linked to our ability to respond to danger, with a bad smell more likely to herald bad news than a sweet one. Picture: Shutterstock.

What's going on in your head when you smell fresh bread being baked? Or a blocked sewer drain?

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