Moving on from an ex can be tough, especially if you were the one let go. But according to a new study in the Journal of Neuroscience, the secret to feeling better is simple: Just do something, anything, that you think will help—because it probably will. Psychologists from the University of Colorado Boulder recruited 40 volunteers who had been broken up with in the past six months and asked them each to bring two photos to a brain-imaging lab: one of their ex, and one of a platonic friend.