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If you swallow a piece of gum, it stays stuck in your stomach forever. To see if your elementary-school buddy was right, Reactions looks at the mechanics and chemistry of digestion in order to settle the myth.
Chocolate is high on the list of things that dogs should not be eating, but why? Today we're taking a closer look at why one molecule, theobromine, is the central culprit to chocolate's toxicity to dogs.