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Did you know that your sense of smell can affect your brain function? In this episode, I sit down with Dr. Michael Leon, a professor emeritus of neurobiology and behavior at UC Irvine, to discuss a fascinating, yet simple intervention that can improve memory and brain function: olfactory enrichment. We explore how odors, when introduced during sleep, can trigger dramatic improvements in verbal memory and even stimulate changes in the brain's memory circuits.
Dr. Leon dives into his research on the relationship between the sense of smell and the brain's memory pathways. He explains how olfactory loss is linked to various neurodegenerative conditions, such as Alzheimer's, and how reintroducing odors during sleep can have a profound impact on cognitive function. We also discuss the development of a device, the Memory Air, which makes olfactory enrichment easily accessible at home.
This conversation sheds light on how olfactory stimulation can provide a simple, non-invasive, and safe solution to brain health and memory loss.
“The sense of smell is the only sense that has a superhighway access to the memory centers and the emotional centers of your brain.”
~ Dr. Michael Leon
In this Episode
03:28 - How the sense of smell differs from the other senses
09:19 - Scent-related marketing strategies
09:57 - Study results and brain imaging findings
19:31 - Potential benefits of olfactory stimulation for other medical conditions
29:03 - Selecting the right scent and avoiding artificial odors
36:30 - Olfactory training for people who have lost their sense of smell
37:37 - Development and use of the Memory Air device
47:43 - Dr. Leon's thoughts on plastics getting into the brain
49:19 - The most misunderstood information about smell and the brain
50:56 - Dosage, duration, and schedule for safe and effective use
Resources:
- Top Supplements for Alzheimer's Guide - https://bit.ly/drjoshguide
- UC Irvine discovery leads to TIME-honored memory device - https://news.uci.edu/2025/10/09/uc-irvine-discovery-leads-to-time-honored-memory-device/
- Get Your Memory Air Device - https://memoryair.com/discount/DRJOSH
Connect with Dr. Michael Leon:
- UCI Directory - https://directory.uci.edu/people/mleon
Connect with Dr. Josh Helman, MD:
- Instagram - https://www.instagram.com/greenbrainsMD
- Facebook - https://www.facebook.com/greenbrainsmd/
- LinkedIn - https://www.linkedin.com/in/doctorjosh
- TikTok - https://www.tiktok.com/@greenbrainsmd
- YouTube - https://www.youtube.com/channel/UCUMtFP2icmNEhOaSsd-CrSg?sub_confirmation=1
- Others - https://linktr.ee/greenbrainsmd
Disclaimer: Please remember that this podcast is for informational purposes only and is not intended as medical advice. Always consult your doctor or healthcare professional before making any changes to your treatment plan.
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