Medical Director, Orba Health
MD · Licensed physician (Thailand) · Internal & preventive medicine
Dr. Zeth is Orba Health's medical director and the physician who reads every first blood panel personally. He trained in internal medicine and has spent the last decade focused on preventive and longevity medicine in Bangkok — translating dense lab reports into plain-English decisions clients can act on. He benchmarks results against optimal ranges, not just the lab's broad reference intervals, and is the clinician in the loop behind every Orba recommendation.
LongevityChronological age counts birthdays. Biological age measures how fast your body is actually wearing — and it predicts disease and death far better. Here's how a blood test reads it.
Metabolic HealthMetabolic health is how well your body manages energy — and most adults are quietly losing it. Here are the blood markers that flag it years before a diagnosis.
Blood TestingDan's guide to which markers earn their slot, which ones don't change anything, and the questions every clinic should answer.
