Kellie Collins, a licensed professional counselor (LPC) who runs a group private practice in Lake Oswego, Oregon, experienced her first panic attack when she was 14. She remembers suddenly feeling cold, losing sensation in her hands and her heart beating so rapidly that it felt like it was going to

Anxiety disorders are the most common mental illness in the United States, affecting 18 percent of the adult population, or more than 40 million people, according to the National Institutes of Health. Among adolescents the prevalence is even higher: 25 percent of youth ages 13 to 18 live with some type