Randomization: We will randomize participants into low dose intervention group (LD; n=30), moderate dose intervention group (MD; n=30), or stretch and tone control group (STC; n=30) after the informed consent and baseline questionnaires have been complete. Research personnel will use a computer-generated list of numbers (i.e., randomizer.org). Research personnel who assign participants to a group will not be the same as those who download or clean data. Additionally, group status will be entered separately so that research personnel downloading data will be blinded to treatment assignment. Women in LD and MD will be prescribed 60 mins or 150 mins of yoga per wk respectively, for 12 wks. The STC group will complete a minimum of 60 mins/wk of stretching/toning exercises to match LD intervention group.