> people taking lots of medications are probably less healthy in general, and therefore more likely to develop dementia. I have already seen several casual con

> people taking lots of medications are probably less healthy in general, and therefore more likely to develop dementia. I have already seen several casual confounds in other comments like this and I have to think the scientist went to stringent lengths to eliminate as many confounds and variables given how strong they claim the link is. > They admit they don't know the mechanism yet, so take with a grain of salt. Just because they don't know the mechanism doesn't mean it should not be taken seriously. We barely confident of the mechanism that causes Tobacco/Nicotine to give cancer. Some even argue it isn't even Nicotine but rather the bacteria that is around nicotine that produces carcinogens. And there is a good chance like Nicotine products the cause is probably multifaceted (like coupled vehicles etc.). That being said I haven't read the study in detail.