Columbia University Study Links Insufficient Sleep to Weight Gain and Increased Waist Size

New York, NY, July 26, 2026 —

New research emerging from Columbia University indicates a significant correlation between a lack of adequate sleep and an increase in both body weight and waist circumference.

The study, conducted by researchers at Columbia University, explored the relationship between sleep duration and metabolic health. Findings suggest that individuals who consistently experience insufficient sleep are more likely to gain weight. Furthermore, the research points to a specific increase in abdominal fat, as measured by waist size, among those with inadequate sleep patterns.

While the exact mechanisms are still under investigation, the study’s implications suggest that sleep may play a more critical role in weight management than previously understood. The findings add to a growing body of evidence linking lifestyle factors to physical health outcomes.

The research was conducted by Columbia University. Specific details regarding the methodology, sample size, or the precise duration of insufficient sleep considered in the study were not provided in the summary. The amount of weight gain or the extent of waist size increase observed was also not specified.

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