Better Living Through Chemistry II
Brad DeLonglinked to an old post of mine. Over at his blog, there is a debate over statins.
The fact that pharmaceuticals have side effects does not imply that such side effects are bad. For example, the most white bread garden variety pharmaceutical is aspirin. Decades after massive use began, it was discovered (and I mean proven in a genuine double blind experiment with 20,000 subjects) that ... causes reduced risk of heart attack.
On topic, there is epidemiological evidence that statin use is correlated with a reduced risk of dementia
. It is possible that the causation is that the demented are less likely to use statins, 5 minutes of googling did not yield a significant benefit found in a prospective study and one with a point estimate very close to zero effect.