Dr. Sara Al-Harbi
Sleep medicine physician with 11 years specialising in circadian disruption and its downstream effects on metabolic health, immune function, and cognitive longevity.
Dr. Al-Harbi trained in sleep medicine at Stanford University, one of the world's leading centres for circadian biology research. Her clinical career began in the Saudi public health system before she moved to private precision medicine — a shift she describes as the difference between treating symptoms and treating the underlying biology.
At Smart Santé she leads the sleep and circadian health assessment: full polysomnography interpretation, continuous actigraphy analysis, chronotype profiling, and cortisol-melatonin rhythm mapping. She also reviews every patient's sleep-related biomarkers — inflammatory cytokines, insulin resistance, and HRV overnight — and calibrates the sleep protocol to the individual's life architecture, not a generic sleep-hygiene handout.
Dr. Al-Harbi is a member of the Saudi Sleep Medicine Society and serves on the advisory panel of the Gulf Circadian Health Initiative. She has published in the Journal of Clinical Sleep Medicine on shift-work disruption and metabolic risk in Saudi healthcare workers — a study that directly shaped Smart Santé's corporate sleep health programme.
Areas of Expertise
- Polysomnography & Sleep Architecture Analysis
- Circadian Rhythm Disorders
- Sleep Apnoea & Respiratory Disorders
- Melatonin & Cortisol Rhythm Calibration
- HRV & Overnight Recovery Optimisation
- Chronotype Profiling & Light-Exposure Protocols
Education & Credentials
- MD — Princess Nourah bint Abdulrahman University College of Medicine, Riyadh
- Sleep Medicine Fellowship — Stanford University School of Medicine, California
- MD, Princess Nourah bint Abdulrahman University College of Medicine
- Fellowship in Sleep Medicine, Stanford University School of Medicine
- Board Certified, American Board of Sleep Medicine
Languages Spoken
Arabic (native), English (fluent)
A Note From Dr. Sara Al-Harbi
"Sleep is not rest — it is the biological maintenance window in which every repair process runs. Getting it right is the highest-leverage intervention in longevity medicine."