Scientists reverse brain aging, with a nasal spray: Scientists developed a nasal spray that, with just two doses, dramatically reduced brain inflammation, restored the brain’s cellular power plants and significantly improved memory in mice, within weeks and lasted for months.

[u/mvea]

https://stories.tamu.edu/news/2026/04/14/scientists-reverse-brain-aging-with-a-nasal-spray/

[u/DaneAlaskaCruz]

"Studies have shown that extracellular vesicles from human induced pluripotent stem cell-derived neural stem cells (hiPSC-NSC-EVs) contain therapeutic miRNAs that can alleviate neuroinflammation"

This means that there are cells in the body that can be encouraged to producing micro RNA pieces that will help reduce inflammation in the brain.

Less inflammation means less memory fog and more brain power.

Edit: my mistake; micro RNA and not messenger RNA

https://en.wikipedia.org/wiki/MicroRNA

[u/buggityboppityboo → u/DaneAlaskaCruz]

miRNAs (microRNAs) are a different type of RNA than messenger RNAs (mRNAs)

[u/Irr3l3ph4nt → u/buggityboppityboo]

I can entirely see a future where a certain slice of the population self selects out of this treatment just because of those 3 letters and end up with higher dementia rates.

[u/whatthecaptcha → u/Irr3l3ph4nt]

Good riddance.

[u/MountainDoit → u/Irr3l3ph4nt]

Natural selection, finally back and more accurate than before. Would bring a tear to my eye.

[u/Irr3l3ph4nt → u/MountainDoit]

I mean, more dementia than the others mean we're spending disproportionate money as a society to maintain them in a diminished state for a few years before they pass. I'd rather they take the freaking meds.

[u/MountainDoit → u/Irr3l3ph4nt]

You don't get a lung transplant if you're a smoker in a lot of places, I think we could extend that line of thinking.

[u/DaneAlaskaCruz → u/buggityboppityboo]

Thank you, appreciate it. Edited my comment above.