Cindy A. Kermott, M.D., M.P.H., is an assistant professor of medicine at Mayo Clinic College of Medicine and Science. She isa physician in the field of general internal medicine and a specialist in the Executive Health Program at Mayo Clinic in Rochester, Minn. Dr. Kermott also is the medical editor of Mayo Clinic Guide to Self-Care, in its seventh edition. Gail M. Boriel, M.B.B.S., M.P.H., is a physician in the fields ofgeneral internal medicine andpreventive and lifestyle medicineand a specialist in the Executive Health Program at Mayo Clinic in Rochester, Minn. Dr. Borielhas special interests in management of individuals with complex medical conditions andevidence-based preventive and lifestyle medicine.