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Why does food make your mouth water? (video)

American Chemical Society

WASHINGTON, March 15, 2016 -- You're sitting in your favorite restaurant when a waiter walks by with a hot plate of your favorite food, and your mouth starts to water. But why? What causes drooling in the first place, and why do we only sometimes salivate? This week, 2015 ACS Chemistry Champions contest winner Hadi Fares explains the chemical mechanisms behind dinnertime drooling. Check it out here:

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