A special edition of the NYT Science Times. Some of it is self-evident, but it's always a fun topic.
I think one common assumption of the researchers has something wrong, though, at least for young men. For young men, the question should be what turns them off, not on: they're always on, otherwise.
It's amusing to read in the NYT about "hearty tumescence," but I thought the funniest quote was this:
“Listening to Noam Chomsky,” said a psychologist in her 50s, “always turns me on."
Good grief. Under what rock did they have to look to find someone who would say that? But at least she didn't say that her favorite was Al Gore with his hockey stick.