Immune system The body’s natural protection against infection and disease. Related Articles: 7 Best Foods to Eat for your VaginaI'm sure by now you detest the phrase "you are what you eat." It's a phrase that makes you roll your eyes as you've been hearing it since good ol' pre-k but... spoiler alert: it's true.Glossary: CMV (cytomegalovirus)Glossary: HIV (human immunodeficiency virus)Glossary: Human immunodeficiency virus (HIV) Hysteroscopic tubal sterilization Implanon