Continually looking on the bright side of life might seem strong, even courageous. But if it"s taken too far, we may beat ourselves up for perfectly reasonable responses to events. While it"s natural that we might prefer to avoid uncomfortable feelings like disappointment, worry, anger, or sadness, recent psychological research supports the idea that they serve useful purposes in our lives. By learning to see that value and accept those feelings without judgement, we may enjoy better physical and mental health.