What is an allergy?

Have you ever wondered why a yummy peanut butter sandwich is just a snack for you, but super dangerous for someone else? Welcome to the wild world of allergies! Join Mira and Finn as they shrink down to discover what happens when your body's immune system gets totally confused and sounds a giant false alarm! You'll meet the body's microscopic security guards—called mast cells—that are packed full of tiny chemical water balloons just waiting to pop! Find out how an amazing secret military invention from the 1970s transformed into the life-saving EpiPen we know today. Plus, travel all the way to Israel to uncover a mind-blowing medical mystery about baby peanut puffs! Could eating peanuts as a baby actually stop you from being allergic later on? Discover how scientists literally had to rewrite the medical books in this epic, sneeze-tastic episode of Science is Not Boring! Get ready to explore the amazing science inside your own body!