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SciTech Now
Spiciness explained
Like many spice junkies, Dr. Marco Tizzano once believed he could develop a tolerance to the burning, painful sensations generated by eating chilies. But as a chef and researcher in chemosensory sensations, he now knows better. Dr. Tizzano explains how capsaicin creates a chemical cascade inside your body, and why emotions might make chili lovers think they can handle the heat.
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