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 why sweets and treats should be enjoyed in moderation. [Directed by STK Films, narrated by Michelle Snow, music by Michael Dow].

Nicole Avena: How sugar affects the brain

How sugar affects the brain

Sugar's effect on the brain mirrors drug addiction, triggering loss of control, cravings, and tolerance with overconsumption.

Diverse diets incentivize our brains to prioritize new flavors, highlighting evolution's role in our quest for nutritional variety.

Unlike drugs, sugar uniquely spikes dopamine without leveling off, explaining its addictive nature and pervasive craving.