Obesity may damage the brain’s ability to recognize the sensation of fullness and be satisfied after eating fats and sugars, a new study found.
Further, those brain changes may last even after people considered medically obese lose a significant amount of weight — possibly explaining why many people often regain the pounds they lose. “There was no sign of reversibility — the brains of people with obesity continued to lack the chemical responses that tell the body, ‘OK, you ate enough,’” said Dr.
“This overall reduction in brain activity makes sense because once food is in your stomach, you don’t need to go and get more food,” Serlie explained. At the same time, levels of dopamine rose in those at normal weight, signaling that the reward centers of the brain were also activated. Different findings for medically obese However, when the same nutrients were given via feeding tube to people considered medically obese, brain activity did not slow, and dopamine levels did not rise.
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