By Emma Young

Edith Piaf famously regretted nothing. But regret is an important emotion, because it can lead us to avoid repeating mistakes, or to heal damaged relationships. It’s also an emotion that many of us feel on a regular basis. “Regret is ubiquitous and powerful,” write Teresa McCormack at Queen’s University Belfast and colleagues in a new paper published in Current Directions in Psychological Science. “It is one of the most frequently mentioned emotions in conversation and affects a huge variety of everyday choices.”

Though there’s been plenty of work on regret in adults, much less is known about how it develops in children. In this new review, McCormack and her colleagues consider what we do know about its development, and outline the major gaps still left to fill. There are implications not just for the basic understanding of regret but also for informing educators in nurseries…