In a study recorded in the Annals of Internal Medicine, yoga works as well as physical therapy in relieving back pain. There were 320 participants whose ages ranged from 18 to 64. Everyone had persistent back pain either moderate or severe. Subjects were divided into 3 groups and the experiment lasted 12 weeks. Group 1 was assigned weekly sessions of yoga. Group 2 was given 15 physical therapy sessions over that period and the last group was basically given educational material about back pain problems. At the end of the study both the yoga and physical therapy groups had similar outcomes. Half were relieved of their problems and half reduced all pain medication. The educational group had only about 20% that said they had reduced their pain level. Consistency remained higher in the yoga group which more of the participants found to be much more enjoyable. It allowed them to either do it in the privacy of their own home or be in a social situation when they felt they needed more support.