Do you feel like you control your emotions, or do your emotions control you? What scientists call "emotion regulation" turns out to be one of the most important life skills we can possess. It's essential in dealing with setbacks, in balancing risks and rewards, and in maintaining successful relationships. This week, psychologist Ethan Kross explores the growing and fascinating science of managing our emotions. He explains why our feelings so often go astray, and shares insights into how to reel them back in.