The science of spiciness - Rose Eveleth
View full lesson: http://ed.ted.com/lessons/the-science-of-spiciness-rose-eveleth When you take a bite of a hot pepper, your body reacts as if your mouth is on fire -- because that's essentially...
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Why does your mouth feel like it's on fire when you eat a spicy pepper? And how do you soothe the burn? Why does wasabi make your eyes water? And how spicy is the spiciest spice? Let's back up a bit. First, what is spiciness? Even though we often say that something tastes spicy, it's not actually a taste, like sweet or salty or sour. Instead, what's really happening is that certain compounds in spicy foods activate the type of sensory neurons called polymodal nociceptors. You have these all over your body, including your mouth and nose, and they're the same receptors that are activated by extreme heat. So, when you eat a chili pepper, your mouth feels like it's burning because your brain actually thinks it's burnin...
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Why does your mouth feel like it's on fire when you eat a spicy pepper? And how do you soothe the burn? Why does wasabi make your eyes water? And how spicy is the spiciest spice? Let's back up a bit. First, what is spiciness? Even though we often say that something tastes spicy, it's not actually a taste, like sweet or salty or sour. Instead, what's really happening is that certain compounds in spicy foods activate the type of sensory neurons called polymodal nociceptors. You have these all over your body, including your mouth and nose, and they're the same receptors that are activated by extreme heat. So, when you eat a chili pepper, your mouth feels like it's burning because your brain actually thinks it's burnin...
