Cologne

Pennsylvania experienced a heat wave last week, with temperatures soaring into the mid-80s. It was not to last. This morning it was a balmy 33°F, with that bone-chilling dampness and threat of snow showers that can only mean one thing: spring! When friends and family who live in warm places send me photos of the beach and brag about taking long walks in the sunshine, I block out their bragging with a defiant flip of my hood and insist that people who live in cold places are tougher. We have more character. True grit. And it turns out that may actually be true. "Cold temperature extends longevity and prevents disease-related protein aggregation," according to a new peer-reviewed study from Germany's University of Cologne. Longevity, i.e.