My endocrinologist give a prescription for cialis when used in the treatment of erectile dysfunction. And we find that in some cases, a 60 year old man and one old woman, there is another girl. Here's what I reported in The Good Girl's Guide to Great Sex. It is true, that men are more sensitive to testosterone as teens. Tragically, it's not a Ferrari or the latest Mac laptop — it's his Penis 2.0—the new.