Another victory for the power of positive thinking. Hope is a good way of combating depression, according to a study by the University of Alabama at Birmingham. The scientists, Jennifer Cheavens and Laura Dreer, found surveyed almost 100 patients who were going blind, along with their caretakers. Hope not only protected against depression, it helped the caretakers, who are more likely to experience depression when caring for someone with the same condition. Hope, they said, differs from optimism: it’s about about having specific goals, and the motivation to achieve them. It’s not innate, but something that can be taught.