From affirmation cards to mirror mantras, a growing number of celebrities are turning to this as a daily ritual to manage anxiety, boost confidence and stay grounded in a high-pressure industry.

Affirmations (meaning statements said with confidence about a perceived truth) have helped thousands of people make significant changes in their lives. But they don't always work for everyone. How can ...

Does repeating a positive phrase called an affirmation out loud or to oneself change one's feelings or behavior? Some psychologists believe the answer to this question is yes. Others remain skeptical.