[Py-o7]

I'd encourage people to actually read the above link. It is very early days and quite far from definitive, but an encouraging attempt that's of special interest for people who are APOE-4 positive and/or have a family history of Alzheimers.

Setting aside early onset Alzheimers, which is arguably a different disease, Alzheimers has major genetic and (ill specified) lifestyle components, tends to manifest in one's ~70s but the damage is believed to start accumulating several decades earlier, hence this study on people in their 40's is of interest.

I still think regular cardio work has the best evidence behind it but if you are at heightened risk of Alzheimers, be pragmatic and make the best out of fuzzy data.