A new study links low blood sugar in obese people to a greater desire within the brain for high-calorie foods, a finding that offers insight into why people who become overweight tend to stay that way.
"Their brains may be driving them to eat more and desire these foods more, and that may promote overeating," explained study author Kathleen A. Page.
"We don't know if that's a consequence of obesity or contributes to the obese state. Are their brains wired differently from the start? Or does that happen after they become obese?"
Whatever the case, the research points to the importance of keeping blood sugar levels stable, said Page, an assistant professor of medicine at the University of Southern California.
Levels of sugar in the blood are directly linked to energy, and those levels often drop after eating lunch and cause a mid-afternoon slump.
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