NEWS YOU CAN USE: Caffeine + alcohol keeps your chromosomes just right. “Now, researchers have found that caffeine makes it more difficult for cells to copy the ends of their chromosomes. But that may be OK, since they also found that booze has the opposite effect. . . . Some telomeres are too long, and some are too short. Perhaps striking the right balance of caffeine and alcohol is the key to keeping them just right—as if you needed an excuse to have another hot toddy.” As soon as I finish my latte.