We know and hear about the different systems in the human body all of the time: The skeletal system, nervous system, digestive system, respiratory system, reproductive system, etc. Most were discovered decades and even over a century ago. Therefore, our knowledge on these bodily systems is quite advanced. We know how to repair them, improve them, replace parts of them and we’ve made medicines focused on them entirely. Knowing they exist is common knowledge, right?

        What if there was a system in your body you didn’t know much about? That no one knew about until recently?