Summer 2014 Mindfulness-Based Stress Reduction evening class series at Upstream. Learn to develop peaceful habits and take control of your stress, anxiety, pain and more this summer with Upstream: A Center for Mindfulness Practice and Holistic Mental Health. Upstream teaches scientifically-developed Mindfulness-Based Stress Reduction (MBSR) in an 8-week evening class series using mindfulness practices like meditation and light yoga to help individuals overcome obstacles, regain and maintain mind and body wellness.