![Illustration of immune cells being taught by a teacher in a classroom](/sites/default/files/styles/igd_node_page_image/public/2023-01/Illustration%20of%20immune%20cells%20being%20taught%20by%20a%20teacher%20in%20a%20classroom.png?itok=KO0mK-xl)
Every day while you eat, sleep, work, and play, battles are being fought throughout your body. You rarely feel it. But bacteria, viruses, and other microbes are constantly invading from the outside world.
Source: https://newsinhealth.nih.gov/2023/01/your-bodys-disease-defenses