How Sugar Affects Our Brains (Video)

1/28/14 11:02AM EST

How Sugar Affects Our Brains Video How Sugar Affects Our Brains (Video)

screen shot via YouTube/TED-Ed

Dr. Nicole Avena put together a short lesson for TED-Ed about how sugar affects the brain and why some people seem to be addicted to sweets. Similar to a drug, sugar activates the brain’s reward system, making people crave more. And similar to drug users, people who eat a lot of sugar can actually build up a tolerance to its effects, making them crave it even more. This lesson is especially important in a world in which even our water has added sugar.

Watch the video below, or head to Ted-Ed to learn more about sugar and its effects.