Why do peanuts, pollen, or pet dander make some of us sneeze or swell up—but not others? In this episode, Dr. Biology talks with immunologist Esther Burgess Florsheim from Arizona State University to explore how allergies start, why they’re becoming more common, and what’s really going on when your immune system sounds the alarm.
From sniffles to “no peanuts, please,” get ready to learn how your body protects you—and sometimes overreacts—in surprising ways!
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