Hormonal
Shortened sleep duration (40% reduction for 4 nights) impairs adrenergic stimulation of lipolysis in postmenopausal women, reducing lipid efflux and potentially promoting abdominal adiposity independent of caloric intake.
If you are a postmenopausal woman struggling with abdominal fat despite diet and exercise, check your sleep. This research shows that even short-term sleep restriction (reducing sleep by 40% for just 4 nights) blunts your body's ability to break down fat (lipolysis). Prioritizing adequate sleep duration is a critical, often overlooked lever for managing abdominal adiposity in this demographic.
Shortening sleep duration blunts adrenergic stimulation of lipolysis without altering insulin-mediated suppression of lipolysis in postmenopausal women. These changes in adipose tissue may potentiate fat gain independent of caloric intake.
Why this rating
Randomized crossover design is strong, but the small sample size (n=6-10) and short duration (4 nights) limit generalizability.
Source
Shortened sleep duration impairs adipose tissue adrenergic stimulation of lipolysis in postmenopausal women
Prachi Singh et al. · Obesity · 2024
DOI 10.1002/oby.24162
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