It seemed like the reduced cholesterol was what impacted personality. I don't know if statins cross the blood brain barrier but if cholesterol levels themselves

It seemed like the reduced cholesterol was what impacted personality. I don't know if statins cross the blood brain barrier but if cholesterol levels themselves drive behavior changes it doesn't seem like they would need to in order to have an impact. This was the most interesting take away for me because it means that crossing the barrier isn't always necessary as indirect effects can be powerful as well.