🧠 What Your Sense of Smell Can Tell Us About Alzheimer’s (And Why That’s Kind of Amazing)

🧠 A new Nature Communications study found that cells in the nose show early signs of Alzheimer’s, even before symptoms appear. This suggests the sense of smell may offer a simple window into early brain changes. Why this matters to me At the Regeneron International Science and Engineering Fair, where my project received a 3rd Place Grand Award, I found that smell based sensory stimulation can improve emotional engagement in a geriatric population. This research helps explain why. Final thought If Alzheimer’s begins in ways we cannot see, but might be able to smell, it changes how we think about detection and care. Sometimes the most overlooked senses hold the most important answers.

📚 Source https://www.nature.com/articles/s41467-026-70099-7 D’Anniballe VM, Kim S, Finlay JB, Wang M, Ko T, Luo S, Whitson HE, Johnson KG, Goldstein BJ (2026). Olfactory cleft biopsy analysis of Alzheimer’s disease pathobiology across disease stages. Nature Communications, 17:2245.