Wait Wait... Don't Tell Me! HTDE: Crushes and Smells
5 snips
Apr 15, 2026 
Claire Dumarc, researcher at University Paris-Saclay who studies olfaction. She explains whether smells really linger and how the nose breaks down odors. The conversation also touches on why we stop noticing our own scent and why vanilla is so widely liked. Plus a lighthearted story about telling someone you like them that wraps the segment.
AI Snips
Chapters
Transcript
Episode notes
Be Brave When Telling Someone You Like Them
- Be brave and tell the person you like them; bravery matters whether they reciprocate or not.
- Darcy (age ten) planned to tell Aiden but feared rejection; hosts encouraged her to accept courage as the outcome itself.
Smells Don't Physically Linger In Your Nose
- Smells are molecules that olfactory enzymes break down after detection, so the scent molecules don't linger physically in the nose.
- Claire Dumarc explains the molecules are broken down and eliminated in mucus, making later perception psychological memory.
Nose Clears Smells For Survival Sensitivity
- The olfactory system clears recent odors so new, potentially important smells remain detectable.
- Claire links this to survival: permanent smells would mask new signals needed for safety or food detection.