Participants undergo 12 sessions of cancer-adapted integral yoga classes using an internet-based videoconferencing platform. Integral yoga includes postures, deep relaxation, breathing practices and meditation to create a profound experience of peace and well-being. Participants take part in study classes from home (or other location that is convenient for the participant and that allows them to access the internet-based classes) with two-way interaction with group instructors and members alike over 75 minutes twice weekly for 6 weeks during radiation therapy. Participants are encouraged to complete additional yoga practice sessions outside of the twice weekly study sessions.