The Science of Happiness The Science of Happiness

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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