What If the First Sign of Alzheimer's Isn't Forgetting?

The Habit Healers · Jun 26, 2026 · 17m

Your sense of smell may be one of the earliest warning signs for brain health and cognitive decline, and almost no one is paying attention to it. In this episode of The Habit Healers Podcast, I explain why smell training could be one of the simplest things you do for your brain.

I’m Dr. Laurie Marbas, and in this episode I walk you through the surprising science connecting your nose to your memory. Smell is the only sense with a direct pathway to the brain’s memory center, the same regions Alzheimer’s disease tends to damage first. Research shows that a declining sense of smell can predict…