If you’re the glass-half-full type, you should be overjoyed at the news coming out of Yale School of Public Health. But pessimists like me? We’re stuffed If you’re the glass-half-full type, you should be overjoyed at the news coming out of Yale School of Public Health. But pessimists like me? We’re stuffed T here’s bad news for me and my fellow Eeyores (there always is): a positive mindset could help you age better. Research led by Prof Becca Levy of the Yale School of Public Health