old man comes to the doctor: "Doctor, I need you to help me, I have a problem every time I want to make love with a new young girlfriend" Doctor: "What's the problem?" elderly: "I'm fine on first, but the second my legs start to shake, and on the third I feel I'm about to have a heart attack!" Doctor: "How old are you?" Elderly: "85". Doctor: "At that age,I really did not understand what the problem ???" elderly: "I'm telling you,the problem is she lives on the third floor with no elevator!"