Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Robert Kneschke/EyeEm via Getty Images - The Conversation Why do we sneeze? – Naomi, 9, San Francisco, California Why do people sneeze with their eyes closed? Is there a way for people to sneeze with their eyes open? – Carlos, 11, Riverview, Florida Why do adults make a loud noise when they sneeze? – Artie, 8, Brooklyn, New York Aaaaa-choo! While your first thought may be to say “Gesundheit!” your second might be to ask: “Where did that sneeze come from?” Sneezing is a phenomenon that occurs in both people and animals. It happens when your body forcibly expels air from your lungs through your nose and mouth. Most of the time, sneezing happens when something infectious, like a virus or bacteria, or irritating, like an allergen or chemical, enters your nostrils. Your body uses sneezing as a defense mechanism to clear your nose of mu...