Taking statins doesn’t seem to hurt your memory or cause dementia, and if someone does notice brain fog or memory issues, it’s rare and usually goes away when they stop the medicine.

What we've found so far suggests that statins do not appear to harm memory or cause dementia. One analysis we reviewed indicates that cognitive side effects, such as brain fog or memory issues, are rare and typically resolve when the person stops taking the medication [1]. Our current analysis shows that the available evidence leans toward statins being safe for brain health. The single assertion we evaluated found no strong link between statin use and long-term memory problems or dementia [1]. While some individuals may report mild, temporary changes in thinking or memory, these cases are uncommon and tend to go away after discontinuing the drug. We want to be clear: this summary reflects only what we’ve reviewed so far. Right now, we have limited data—just one assertion analyzed, with no opposing findings. That means our understanding is still developing. We can’t say for sure how statins affect everyone, nor can we rule out rare reactions. But based on the evidence at hand, there’s no strong signal that statins lead to memory loss or dementia. As always, we’re tracking new research. Our analysis will update as more data becomes available. Practical takeaway: If you're on a statin and notice changes in your memory or thinking, it’s worth discussing with your doctor—but know that such effects are uncommon and often go away.