Does Intensive Blood Pressure Lowering Prevent Dementia? A Podcast with Jeff Williamson

As Eric notes in the introduction, this recent study in JAMA by Jeff Williamson and colleagues led to some very contradictory headlines. Some headlines proclaimed that lowering blood pressure prevents dementia, and others stated the opposite, that lowering blood pressure does not prevent dementia. So what exactly did the study show? Do these results apply to patients we commonly see in Geriatrics? What should we make of the fact that after the trial was stopped early the blood pressures in the lower blood pressure target group rose - does this mean you can't achieve intensive blood pressure lowering "in the real world"?