Participants in this study are recruited from intakes at the Center for Anxiety and Related Disorders at Boston University. Participants will be randomly assigned to receive either acceptance and mindfulness-based strategies plus cognitive behavioral therapy or no treatment for 16 weeks. The treatment will involve daily practice of mindfulness techniques to help draw attention to and accept various emotional states. Interviews, questionnaires, and depression and anxiety scales will be used to assess participants. Assessments will be conducted post-treatment and at 3- and 9-month follow-up visits.