Textbook Problem

A friend of yours was recently diagnosed with cancer. His physician discussed surgery, radiation, and possibly chemotherapy as recommended treatment options. His sister suggested that in addition to the physician’s treatment, your friend might also benefit from a few acupuncture sessions and yoga classes. His roommate disagreed, suggesting that instead of following the physician’s recommendations, your friend should start taking high doses of dietary supplements and doing colonic enemas daily. At this point, your friend is confused. What advice might you offer to help him make an informed decision?