Uncomfortable emotions such as anger, guilt or loneliness are like the guiding beam of a lighthouse - they warn you of dangers ahead and help you navigate a meaningful life more effectively.

Harvard Medical School psychologist Susan David tells Dr Laurie Santos why many of us choose to ignore negative feelings or suppress them - when we should be engaging with them in a way that helps us understand what is going wrong in our lives and what we need to do to fix things and find greater happiness.