Add Yahoo as a preferred source to see more of our stories on Google. Affirmations can have a positive effect on a person's self-worth. Here's how to get started. (Getty Images) Affirmations can ...

Self-affirmation theory was proposed by psychologist Claude Steele in the late 1980s and remains popular today. The theory suggests we have a deep desire to craft a personal narrative that we are ...

This summer, plenty of celebrities, from models to Olympians, have demonstrated or spoken out about the power of affirmations. But what are affirmations, and do they actually work? And perhaps a more ...