Mystery #2Tier 2smell and memory
Why can one whiff of a smell suddenly throw you back to a moment years ago?
You catch a whiff of something, maybe suncream or a certain flower, and suddenly you are five years old again, standing somewhere you had completely forgotten. It happens in a flash, before you can even choose to remember. Why can a single smell fling you back through the years like a time machine?

Your guess
Why do you think a smell can drag up an old memory so fast?
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