I'm not a doctor, so cannot qualify this article at all, but it is certainly interesting, and I am aware that the brain requires fat and cholesterol to work well. It is difficult to judge what triggers what side effects because often dementia or memory loss is just ascribed to 'old age' even if the patient has been taking Statins for a while.
But the World Health Organization study on trends in cardiovascular disease with relation to average cholesterol vs death rates is certainly food for thought. BUT always consult with your doctor if you're considering changes, or discontinuing any prescribed medication.
One just hopes that more and more studies will consider and evaluate any correlations found.
See The Link Between Statins, Memory Loss & Dementia
Memory loss and dementia are some of many side effects of statins. Learn what to do if you think statins are causing memory loss for you.