Even though cholesterol-lowering drugs reduce overall cholesterol, your cells still make their own to meet their needs, and taking statins might actually lower your chances of getting dementia.
Evidence from Studies
Supporting (3)
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Statin use and dementia risk: A systematic review and updated meta‐analysis
The study looked at millions of people taking statins and found they had a lower chance of getting dementia, which supports the idea that statins may help protect the brain.
Statin use and dementia risk: A systematic review and updated meta‐analysis
The study looked at millions of people taking statins and found they were less likely to get dementia, which supports the idea that statins may help protect the brain.
Overview the effect of statin therapy on dementia risk, cognitive changes and its pathologic change: a systematic review and meta-analysis.
The study looked at people taking statins and found they had a lower risk of dementia. This supports the idea that statins don’t harm brain health, even if they lower cholesterol in the body.
Contradicting (2)
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The study looked at people who already have Alzheimer’s and found that taking statins didn’t slow down their memory loss. This doesn’t support the idea that statins help prevent or reduce dementia risk.
Microglia as a key mediator in rosuvastatin-associated cognitive impairment.
The study found that a statin called rosuvastatin can harm brain immune cells in a lab dish, which might lead to thinking problems. This goes against the idea that statins protect the brain and don’t affect cholesterol in brain cells.
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.