How sugar affects the brain

When you eat something loaded with sugar, your taste buds, your gut and your brain all take notice. This activation of your reward system is not unlike how bodies process addictive substances such as alcohol or nicotine -- an overload of sugar spikes dopamine levels and leaves you craving more.
Nicole Avena explains what sugar does to your body.
Lesson by Nicole Avena, animation by STK Films.

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Help teens figure out alternate sweeteners. What do you use to satisfy a sweet tooth.

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