Summary: Immunology is connected to every organ system in the body... your heart, your brain, your digestive system, and more.Your immune system is critical for defending yourself against bacteria and viruses. But, it's also important also in other health areas. Immunology is connected to every organ system in the body... your heart, your brain, your digestive system, and more. Leonard H. Calabrese, DO, heads Cleveland Clinic's Section of Clinical Immunology and manages its Clinical Immunology Clinic. He joins Dr. Roizen to discuss all the intricacies of the immune system and why you need to keep yours healthy to live a long, healthy life. Bonus The Perfect 70-Calorie Snack
