Foundational research · 2022: sleep extension and energy intake
Source publication date
Site published
Participants aged 21–40 had BMI 25–29.9 and habitual sleep under 6.5 hours. During the two-week intervention, counseling increased sleep by about 1.2 hours and reduced intake by 270 kcal/day versus control (95% CI -393 to -147). DOI: 10.1001/jamainternmed.2021.8098.
Summary
A University of Chicago randomized trial studied 80 adults with overweight.
Editorial view
Editorial view: connect sleep and weight-management research while retaining study duration.
Evidence and limitations
Short, single-center trial; no proof of sustained weight loss, lifespan extension or sleep-device efficacy.