A study reveals that our brain's mechanisms for feeling full also stimulate cravings for sugary snacks. In experiments, mice consumed large quantities of high-sugar treats even when satiated, activating reward centers in their brains. When their brain activity related to sugar was disabled, the mice didn't overeat sweets despite being full. This suggests our natural inclination towards sweeter foods is rooted in our evolutionary past, as sugar offers quick energy. The findings parallel human behavior, indicating that visual cues of desserts can also increase our desire for sugary treats.
Dr. Henning Fenselau explained that our caveman brain is evolved to prioritize sugar due to its rarity and energy-boosting properties, making it hard to resist desserts.
Experiments showed that mice, even when full, consumed significantly more sugar calories because of brain activity in areas that signal reward and hunger.
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