Study Identifies Link Between Obesity and Reduced Eating Pleasure

Researchers have identified a potential explanation for why individuals with obesity may experience diminished pleasure from eating. The study, published on March 26, 2025, examines the relationship between obesity and the brain’s dopamine response, which is associated with feelings of reward and satisfaction during food consumption.

The findings suggest that while junk foods like French fries and burgers typically trigger a dopamine rush in the brain, this response appears to weaken in individuals with obesity. Scientists propose that repeated exposure to high-calorie foods may alter the brain’s reward system over time, reducing its sensitivity to dopamine signals. This diminished response could lead to overeating as individuals seek greater quantities of food to achieve the same level of satisfaction. Researchers aim to further investigate how these changes in brain chemistry contribute to eating behaviors and weight gain.

Date: March, 2025

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Author

Mark Chiang

紐約 NYU Computer Science 碩士 紐澤西 UMDNJ Biomedical Informatics 博士 中研院博士後 台灣大學博士後