Subject: smells and dementia
This is interesting. I'm surprised of the HUGE improvement. Normally you see numbers like "15%". Not "226%". If this proves to be correct, I may have to get a stinky device (I don't like artificial perfumes/scents).

https://www.news-medical.net/n...

Participants in this study by University of California, Irvine neuroscientists reaped a 226% increase in cognitive capacity compared to the control group.