Sorry for the lack of notice, but my life has been crazy so I'm barely finding time to get this post up. So, I didn't get time to give notice. But the Media section isn't usually all that busy, so feel free to read the chapter or article and then come back to discuss.
Although I haven't compared them word for word, a version of this chapter can be found in the New York magazine here:
http://nymag.com/news/features/38951/
Anyway, this chapter is on sleep and basically says that kids are getting about an hour less sleep than they used to and that it matters. Studies show that less sleep makes a difference. The solution the authors put forth at a high school level is that high schools should start an hour later.
As always, I'll save my comments for below.