If you are assigned to the yoga or stretching group, you will take part in 3 "booster" sessions consisting of a review and practice of the entire program. If you are in the 4 weekly sessions, your booster sessions will take place 1 and 2 months after your last yoga or stretch class and again around the time of your 6-month assessment. If you are in the classes that meet every 3 weeks over a 12-week period, your booster sessions will take place 3 and 6 weeks after your last yoga or stretch class and again around the time of your 6-month assessment.