Never mind that I'm supposed to be teaching right now... The kids have free time in the computer lab, and are all playing Disney games, so this is my way of staying sane (I nearly reactivated my very old addiction to Neopets after they played on that site yesterday - I will NOT be corrupted by Disney!!)
PāNu - just read this site 'cover to cover'. Kurt is an MD who really knows his stuff; check out ALL of his blog posts to garner a thorough understanding of how knowledge of the medical sciences is enhanced when placed in the context of history. Particularly good post - The argument against cereal grains.