Home / Health / Shorter Sleep, Larger Waistline: New Study Links Sleep Loss to Weight Gain
Shorter Sleep, Larger Waistline: New Study Links Sleep Loss to Weight Gain
27 Jul
Summary
- Cutting 90 minutes of sleep nightly led to an average one-pound gain.
- Waistlines also increased slightly after six weeks of reduced sleep.
- Sleep deprivation may impact weight regulation, especially for women.
A recent study published in the Annals of Internal Medicine suggests a direct correlation between insufficient sleep and weight gain. Researchers from Columbia University Irving Medical Center observed 95 adults over six weeks, comparing periods of adequate sleep with periods where participants slept approximately 90 minutes less each night.
During the sleep-restricted phase, participants gained about one pound on average and showed a slight increase in waist circumference. While body fat and muscle mass did not significantly change, the study noted increased sitting time. Researchers emphasized that sleep is crucial for regulating weight and that chronic sleep deprivation can particularly affect metabolism, especially in women experiencing menopause.
The American Heart Association now recognizes sleep as a key component of heart health, recommending seven to nine hours per night. Experts stress that treating sleep as a vital sign is essential for maintaining overall well-being and preventing health complications. The study acknowledged limitations, including its six-week duration, which may not be sufficient to observe long-term metabolic changes.
