[Prayer heals. So say thousands of Americans who use prayer to improve their health. According to a study by Dr. Anne McCaffrey of the Harvard Medical School one third of Americans use prayer to facilitate physical healing. 69 percent of the 2,000 people surveyed said prayer greatly improved their health. Additional studies have linked prayer to positive health outcomes with high blood pressure, asthma, heart attacks, headaches, and anxiety.] It's not a fringe thing, ... I think very mainstream Americans are using prayer in their daily lives.

Anne McCaffrey