Why are conversations about sex so hard to have? (That’s a rhetorical question, I think.) This article by a doctor about the conversations he has with his adolescent patients is funny, but it just illustrates how hard these conversations are to have. It’s Time for the Truth, When Body Clock Strikes 13 – New York Times. It’s sad as well as funny when a boy has to ask his doctor whether Mountain Dew kills sperm or not.