One in 20 children is allergic to peanuts — but a cure may be on the horizon. Maryn McKenna is a journalist specializing in public health, global health and food policy and is a contributing editor at Scientific American. She joins host Krys Boyd to discuss why peanut allergies jumped astronomically since the 1990s, what makes the allergy so deadly, and how researchers are zeroing in on cures for a hypervigilant population of allergy sufferers. Her article is “Can Peanut Allergies Be Cured?”