How Smell Shapes Memory
Sep 24, 2026 · 26m
Summary
Host Dacher Keltner explores the power of scent with chef Samin Nosrat, who shares how aromas from the ocean and her Persian heritage anchor her identity and calm her mind. Psychologist Lucia Jacobs then explains the neuroscience behind smell, detailing its direct link to memory, emotion, and the nasal microbiome. The episode highlights how intentional scent walks and nature exposure can improve mood, reduce anxiety, and foster a deeper sense of well-being.
Topics discussed
Opening: The scent of the bay and childhood memories
Show intro: The power of smell and guest previews
Sponsor: Dave DeSteno on spiritual wisdom
Sponsor: Butcher Box meat delivery service
Sponsor: Wayfair home storage and organization
Introduction to Samine Nosrat and the scent walk concept
Early memories: Persian cooking and identity
The garlic scent in grandparents' backyard
Smell as a tool for grounding and body awareness
Scent walk experience: Bay water and marine layer
Wild fennel and memories of early cooking career
Using scent to manage anxiety and stay present
Sponsor: Greater Good Love Summit announcement
Sponsor: CacaHava salted caramel nutrition
Sponsor: Osea Malibu seaweed skincare
Sponsor: KQED podcast on Nancy Pelosi
Lucia Jacobs: The evolutionary history of olfaction
The neuroscience of scent and memory consolidation
Olfaction, emotion, and the hippocampus connection
Embodied cognition and the chemical environment
Cultural influences on how we perceive odors
The nasal microbiome and its link to gut health
Practical tips: Smelling the rainbow for well-being
Preview of next episode and show credits
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