Perusing the science news this morning, as I do, I came across an interesting article about scientists finding an effect of menthol on Alzheimer's disease. Anecdotally, my nan had a obsession for sucking on boiled mints, which only grew with her sad decline.
I remember worrying that maybe the mints were making her worse, but maybe it was her way of fighting back against the disease ...
https://www.sciencealert.com/unexpected-connection-between-menthol-and-alzheimers-discovered-in-mice