The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
So our olfactory neurons, these neurons in our nose that detect odors are really unique among other brain neurons because they get replenished throughout life, they don't just regenerate, but they get replenished. So regeneration is when something is damaged and it regrows, these neurons are constantly turning over throughout our lifespan, they're constantly being replenished, they're dying off and they're being replaced by new ones.
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
These neurons are constantly turning over throughout our lifespan. They're constantly being replenished. They're dying off and they're being replaced by new ones. This is really interesting because other neurons in your cortex, in your retina, in your cerebellum, they do not do this. They are not continually replenished throughout life. But these neurons, these olfactory neurons are they are special.
In fact, how well we can smell and taste things is actually a very strong indication of our brain health. So, our olfactory neurons, these neurons in our nose that detect odors, are really unique among other brain neurons because they get replenished throughout life. They don't just regenerate, but they get replenished.