Can stimulating the sense of smell be beneficial for the brain?

By Coline Zigrand, Candidate au doctorat en neuropsychologie, Université du Québec à Montréal (UQAM)
Benoît Jobin, Chercheur postdoctoral et docteur en neuropsychologie, Harvard University

Can a simple scent released while you sleep improve your sense of smell, your memory or even the quality of your sleep? New research explores the benefits of passive olfactory stimulation.

One in five people experience a loss or reduction of their sense of smell. This can result from different conditions, including respiratory infections, sinusitis, COVID-19, head trauma, neurodegenerative diseases or exposure to chemicals.

Although invisible, it significantly reduces

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