Murdoc Khaleghi, MD, has written many books on health and wellness and is the medical director of WellnessFX, an organization devoted to improving overall health through a combination of medical and natural interventions. His books include the Everything Guide to Preventing Heart Disease and New, Healthier You. In addition to writing, Dr. Khaleghi continues to see patients, frequently speaks on health topics, and has been featured on numerous television and radio shows. Author home: Westfield, Massachusetts.Colleen Totz Diamond is a freelance writer and editor with 20 years of experience working on books in the health and lifestyle categories. Her recent work includes books about heart health, celiac disease, and emotional intelligence. Author home: Meriden, Connecticut.