The Science of Chocolate

While you unwrap that luscious truffle, let Hank explain the science of chocolate -- where it comes from, what its active ingredient is, and how it works. Also learn the difference between chocolate, cocoa, cacao and coca, so you really know what you're talking about the next time you pas the candy disk.

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Sources:

http://serendip.brynmawr.edu/bb/neuro/neuro01/web2/Slaughter.html
http://pets.webmd.com/dogs/guide/dogs-and-chocolate-get-the-facts
http://westerndigs.org/earliest-use-of-chocolate-in-america-discovered-suggesting-ancient-immigrants/