Washington: Increasing the amount of sleep that adults get could lead to reduced food intake, according to a new study. It also revealed that short sleep affects hunger differently in men and women.“Restricting sleep in healthy, normal weight participants has limited effects on metabolic risk factors and may affect food intake regulating hormones differently in men and women,” said Marie-Pierre St-Onge, PhD, FAHA, the study’s principal investigator. “We were surprised by the lack of a significant effect of sleep on glucose and insulin, leptin, and sex differences in the hunger-stimulating hormone ghrelin and the satiety hormone GLP-1,” she stated.The study tracked the sleep duration, glucose dysregulation, and hormonal regulation of appetite in 27 normal weight, 30- to 45-year-old men and women.Participants provided fasting blood draws, and they were studied under two sleep conditions: Short (4 hours) or habitual (9 hours). Short sleep increased total ghrelin levels in men but not in women and reduced GLP-1 levels in women but not in men, a sex difference that has not been reported before.
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