elfs | Wait. We knew all this already

So, there's this article buzzing around the Internet: "Seven Medical Myths Even Doctors Believe," or some such. The "myths" they list are:

People should drink at least eight glasses of water a day
We use only 10% of our brains
Hair and fingernails continue to grow after death
Shaving hair causes it to grow back faster, darker, or coarser
Reading in dim light ruins your eyesight
Eating turkey makes people especially drowsy
Mobile phones create considerable electromagnetic interference in hospitals.

The oddest thing about this article is that I thought we already knew all of these. Haven't articles like this been floating around the medical literature for years? Maybe not all collected in one place, but I know I saw an article about how the "64oz of fluids a day requirement" got translated into the "8 glasses a day myth" last year, and the bit about there not being enough tryptophan in turkey to cause drowsiness is a decade old, at least. Articles pointing out that there's no clinical evidence associating reading in dim light with long-term vision problems have been around at least since 2003.

I'm just surprised to see it all coming out so quickly; fully eight percent of my "You must read this" RSS feed was that one article, or some report on that article. It's just weird.