Rigorous exercise does not halt dementia decline, study concludes Keeping active helps prevent the onset of dementia, but once the disease has taken hold, working out more does nothing to slow its progress Guardian article available @ https://www.theguardian.com/society...exercise-makes-dementia-worse-study-concludes Study @ https://www.bmj.com/content/361/bmj.k1675 Honestly, the contrast between the quality of this study and something like PACE is actually absurd.