In the grand tradition of federal grants paying to “discover” things that most people take for granted comes this:

A study released Tuesday in the journal Proceedings of the National Academy of Scientists found 54 percent of men and 19 percent of women admit they think about sex every day — or several times a day — in a society where they are bombarded with subconscious erotic images. … Researchers also found sexual orientation often determines how the brain reacts to erotic images. Heterosexual women, for example, were more tuned in to pictures of naked men, the same reaction exhibited by homosexual men.

No doubt they used some poor, put-upon TA’s to help them select the nudie pics. “No, no, not good enough, got get me some more …”