Description
Inclusion Criteria:
- * Pre-diabetic kg/m2 (hemoglobin A1c 5.7-6.9%)
- * 25 years or older
- * BMI between 25-39.9 kg/m2
- * Sleep duration ≥6 hours a night assessed with wrist actigraphy (for 14 nights)
- * Variable bedtime, SD≥45 minutes.
Exclusion Criteria:
- * Chronic Kidney Disease (GFR\<60)
- * Uncontrolled hypertension (≥160/100 mmHg)
- * Obstructive Sleep Apnea
- * Psychiatric or neurological disorder
- * Prevalent cardiovascular disease
- * Dyslipidemia (triglycerides≥200 mg/dL)
- * Medications that affect insulin sensitivity, glucose concentrations, and body weight
- * Non-day or rotating shift workers
- * Travel across time zones
- * Active participation in weight loss program or within past 3 months
- * Current or past alcohol/drug abuse
Ages Eligible for Study:
25 Years to N/A (ADULT, OLDER_ADULT)
Sexes Eligible for Study: ALL
Accepts Healthy Volunteers:
No