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Sleep Less, Weigh More: New Study Confirms Link
20 Jul
Summary
- Losing 1.5 hours of sleep nightly for six weeks can lead to a pound of weight gain.
- Reduced sleep increases sedentary time and hormonal changes related to hunger.
- Mild, chronic sleep loss can causally contribute to weight gain in adults.
A recent study published in the Annals of Internal Medicine reveals a direct correlation between reduced sleep and weight gain. Participants who consistently slept 1.5 hours less each night for six weeks gained approximately one pound. This research expands on previous findings by examining more naturalistic sleep reduction scenarios.
Beyond weight gain, the study observed increases in waist circumference and hormonal markers related to hunger. Sedentary time also rose, particularly for men and postmenopausal women. Researchers suggest that increased calorie intake, rather than decreased energy expenditure, likely drives the weight gain associated with sleep restriction.
This study provides robust evidence that mild, chronic sleep loss, common among many adults, can causally contribute to weight gain in real-world settings. Experts emphasize the importance of adequate sleep for maintaining a healthy weight and suggest strategies like consistent bedtimes and avoiding late-night stimulants.
To improve sleep, experts recommend establishing a regular sleep schedule, avoiding heavy meals close to bedtime, and limiting caffeine intake later in the day. For persistent sleep issues, consulting a doctor or sleep specialist is advised to develop personalized strategies and address underlying factors affecting sleep quality.
