Some studies have shown that people taking cholesterol-lowering drugs called statins are less likely to go on to develop Alzheimer's disease. However, a long-term study of 929 Catholic priests who had an average age of 75 at the start of the study has found that statins have no effect on the development of Alzheimer's disease. The priests took annual cognitive tests and all agreed to a brain autopsy after their deaths. The study found no association between taking statins and a reduced risk of developing Alzheimer's or a slower cognitive decline and the brain autopsies found that the brains of those who had taken statins were no different to those of other people.
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