I can tell it's summer because my left arm resembles a relief map of Utah. In middle age I've developed an aversion to sunlight, which causes my skin, after a mere five minutes outdoors, to burst with angry red welts that itch like mad for a week. I threw caution to the wind the other day and drove to the post office in a short-sleeved shirt. Now, it's all I can do not to claw the skin from my arm, which is burning with fever and looks like an especially... More >>>