Today on Health & Longevity, Dr. John Westerdahl features guest, Brian Clement, Ph.D. – Director, Hippocrates Health Institute. Dr. Brian Clement discusses the health hazards and dangers of eating fish. Many people today consider fish a healthy food, however Dr. Clement points out how eating fish is unhealthy for both the body and unhealthy for planet earth. He is the author of "Killer Fish: How Eating Aquatic Life Endangers Your Health."