Columbia Study: Losing 80 Minutes of Sleep Per Night Leads to Weight Gain
A Columbia University study published in July 2026 found that losing just 78 to 80 minutes of sleep per night over six weeks causes measurable weight gain. Researchers tracked participants who consistently slept less than their normal amount and found increased caloric intake and reduced physical activity. The findings add to a growing body of evidence linking sleep quality to metabolic health.
A Columbia University study published in July 2026 found that losing just 78 to 80 minutes of sleep per night over six weeks leads to measurable weight gain.
Researchers tracked participants who consistently slept less than their normal amount and found they consumed more calories and were less physically active than those who maintained their regular sleep schedules. The study adds to a growing body of evidence linking sleep quality directly to metabolic health.
Sleep has increasingly been recognized as a critical pillar of overall health, alongside diet and exercise. The Columbia findings suggest that even modest, consistent sleep loss, the kind that many people experience during busy work weeks, can have real consequences for body weight over time.
Health experts recommend that adults aim for seven to nine hours of sleep per night. Strategies for improving sleep quality include maintaining a consistent bedtime, limiting screen exposure before bed, and keeping the bedroom cool and dark.
The study's results were highlighted by multiple health news outlets in July 2026, including Healthline and ScienceDaily, as part of broader coverage of lifestyle factors that influence long-term health outcomes. Researchers noted that the weight gain observed was not dramatic in the short term but could compound significantly over months and years of chronic sleep restriction.
