The click bait title would suggest Alzheimer is a prion disease. There is zero evidence of that.
this post was submitted on 25 Aug 2026
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The article implies it as well. This article says it is as well: https://www.ucsf.edu/news/2019/05/414326/alzheimers-disease-double-prion-disorder-study-shows
If you’re worried about Alzheimer’s just use tobacco. Nicotine is neuroprotective. I’m sure there are lower risk ways to use tobacco, but don’t ask doctors about them.
Smoking is a significant risk factor for Alzheimer's so if nicotine itself helps then it's definitely not by smoking.
If you just want the nicotene, vape. The worst parts of tobacco is in the smoking. (The second worst are in the dipping.)