Nighttime Synchrony of Your Nutrition and Circadian Health
Sleep is an important factor for overall health. This study will see how different light exposure patterns and food intake impact a person's metabolism (how the body breaks down food) when sleeping is reduced. Participants will attend 6 to 8 in-person visits to the study clinic, including three overnight stays. People
| Condition(s) | Sleep, Metabolism Changes, Circadian Rhythm, Lifestyle Factors, Sleep Hygiene, Sleep Hygiene, Inadequate, Sleep Deprivation, Insufficient Sleep, Circadian Misalignment, Circadian Dysregulation, Light |
|---|---|
| Status | Recruiting |
| Phase | NA |
| Study type | Interventional |
| Summary | Sleep is an important factor for overall health. This study will see how different light exposure patterns and food intake impact a person's metabolism (how the body breaks down food) when sleeping is reduced. Participants will attend 6 to 8 in-person visits to the study clinic, including three overnight stays. People will complete surveys and medical tests. The study will last about 4 to 6 months. |
| Who can participate | Inclusion Criteria: 1. Age: 18-35 years old; equal numbers of men and women 2. Body Mass Index (BMI): 18.5-24.9 kg/m2 3. Sleep Habits: habitual self-reported average total sleep time (TST) 7-9 hours per night for prior 6 months Exclusion Criteria: 1. Clinically diagnosed sleep disorder or apnea hypopnea index (AHI) ≥5 2. Evidence of significant organ system dysfunction or disease (e.g., heart disease, diabetes) 3. Fasting plasma glucose ≥100 mg/dL 4. Major psychiatric illness (e.g., major depressive disorder) 5. Cancer that has been in remission less than 5 years 6. History of shift-work in prior year 7. Weight change \>5% of body weight over prior six months 8. Currently following a weight-loss program 9. Menopause 10. Pregnant/nursing 11. Greater than 5-day variation in menstrual cycle l |
| Ages | 18 Years to 35 Years |
| Sex | All |
| Accepts healthy volunteers | Yes |
| Lead sponsor | University of Utah |
| Locations | Salt Lake City, Utah, United States |
| Start date | 2025-12-19 |
| NCT ID | NCT07329283 |
| Official listing | https://clinicaltrials.gov/study/NCT07329283 |