This lesson is happening because of all the battles against villains, and the teachers want to make sure that everyone is in good health. If they're not, then they will be able to help. Aizawa will ask questions to the students regarding the different illnesses, such as: "Have you ever felt like someone is always watching you? Raise your hand if you are comfortable telling." Many TW, and if they feel uncomfortable, are welcome to sit outside for a bit. Class will share stories if comfortable.