Circadian Rhythm and Weight
The relationship between your body's internal clock and weight regulation, showing how meal timing and sleep patterns affect metabolism and fat storage.
Plain English
Patient-Friendly Explanation
Your body's internal clock, called the circadian rhythm, affects more than just sleep — it also influences metabolism, hunger hormones, and how your body stores fat. Eating late at night or having irregular sleep patterns can disrupt this clock and make weight management harder.
Medical
Clinical Definition
The circadian system regulates diurnal variations in glucose metabolism, lipid homeostasis, and appetite hormones including leptin and ghrelin. Circadian disruption — whether from shift work, jet lag, or social jet lag — is associated with increased BMI, higher rates of metabolic syndrome, and impaired glucose tolerance. Time-restricted eating and consistent sleep-wake schedules are evidence-based strategies to realign circadian rhythms for weight management.
Key Insight
Why It Matters
Optimising your daily routine — not just what you eat but when you eat and sleep — can significantly improve weight loss outcomes. Dr. Joseph Wang incorporates circadian health into holistic weight management plans.
Sources
Reviewed against standard medical references.
Medically reviewed by
Family Physician & Registered Acupuncturist, Accord Medical Clinic. MBBS (NUS), Graduate Diploma in Family Medicine (NUS), Graduate Diploma in Acupuncture (Singapore College of TCM).
Last reviewed: August 2026
This page is general health education, not medical advice. Whether any treatment is appropriate for you is a decision made in consultation after assessment.
