Caffeine and Alzheimer's...

An article in Science Daily yesterday starts thusly:

Those cups of coffee that you drink every day to keep alert appear to have an extra perk -- especially if you're an older adult. A recent study monitoring the memory and thinking processes of people older than 65 found that all those with higher blood caffeine levels avoided the onset of Alzheimer's disease in the two-to-four years of study follow-up. Moreover, coffee appeared to be the major or only source of caffeine for these individuals.

A snide remark involving my parents (both of whom drink caffeinated beverages daily) comes right to mind. But I'll restrain myself, as my mom reads this blog. When she can remember, that is...