Do you worry a lot? Do you get anxious in social situations? Do you have panic attacks? If you answered yes to any of these questions, you may be eligible to participate in an online anxiety research study via Georgetown University Medical Center. As a participant in the study, you will have a 50/50 chance of being assigned to one of two treatments: Mindfulness-Based Stress Reduction course, or an antidepressant medication. Treatment is provided at no cost, in a completely online, virtual environment. For more information, please visit our website: https://sites.google.com/georgetown.edu/georgetownanxietystudy