Dr Olivia Ly Lesslar, MBBS, BIR

Dr Olivia Ly Lesslar is an Australian medical doctor internationally recognised for her expertise in psychoneuroimmunology, longevity, and complex-condition medicine. With formal training in Medicine and International Relations, she brings an interdisciplinary perspective that bridges neuroscience, immunology, behavioural science, and diplomacy.

Often described as a “medical Sherlock Holmes,” Dr Lesslar is known for her investigative thinking and ability to solve intricate medical puzzles. Her distinctive diagnostic style, combining rigorous scientific method with intuition and pattern recognition, has made her an invaluable resource for clinics, research programs, and technology companies seeking to navigate complex, multifactorial health challenges.

In 2025, she completed a seven-city speaking tour across Australia and New Zealand, presenting her original framework The Nine Ancient Survival Threats, which explores the evolutionary roots of chronic disease and how ancient biological imperatives shape modern health outcomes. Her work advocates for decentralised, patient-centred medicine that prizes curiosity, autonomy, and resilience.

Dr Lesslar serves as Director of Functional and Longevity Medicine at Cingulum Health in Sydney, integrating transcranial magnetic stimulation and neuroplastic therapies with functional and lifestyle medicine for neurological, psychiatric, and traumatic brain injury patients. She is also Medical Architect and Founding Chief Medical Officer of Eir Liv, a medicalised longevity atelier within the Florence Guild ecosystem in Sydney, where she designed the clinical philosophy, governance architecture, and therapeutic framework underpinning its integrative longevity model. Internationally, she serves as Founding Chief Clinical and Standards Advisor and Founder Executive Mentor to Elite Optimal Health Centre in Accra, Ghana, guiding the establishment of its clinical standards, therapeutic evaluation frameworks, and executive leadership development.

Her advisory and leadership roles span more than thirty international organisations across the United States, United Kingdom, Europe, Asia, and Australasia. She is Chief Medical Advisor to Human Regenerator (UK), Chief Medical Officer at Atlus (Australia) and L’evive Labs (Singapore), Science Director at Sens.ai (Canada), and Medical Director at Liber8 and Veteran Peace (USA). She advises longevity, biotech, and neurotech ventures including ANI Biome (Croatia), Avea (Switzerland), Airofit (Denmark), Oxford Healthspan (UK), The Naked Pharmacy (UK), Curada (USA), Eli Health (Canada), Simplr Health (Australia), and UltraLux Health (USA). She is also a Director of the British College of Functional Medicine (UK).

Dr Lesslar is a Health Span XPrize Team Member with the Space Aging Research Institute (USA) and ANI Biome (Croatia), Vice President of the Women in Defence and Space Alliance (Finland), and a consultant to clinics including LifeSpan Medicine (Los Angeles) and Queensland Allergy Clinic (Australia).

In academia, she is Adjunct Senior Lecturer at Griffith University’s National Centre for Neuroimmunology and Emerging Diseases and Faculty Lecturer at the Geneva College of Longevity Science, and has lectured at Oxford University (UK), Georgetown University (USA), Bond University (Australia), the National University of Singapore, University of Southern California, and the University of California Berkeley.

Her 2022 TEDx Melbourne talk, Take Control of Your Lifestyle-Driven Disease, reflects her advocacy for medical autonomy and innovation. Named among the NYC Journal 50 Under 50 for contributions to healthcare innovation, Dr Lesslar combines analytical acuity, a global network, and disciplined curiosity to redefine how science, technology, and human insight converge in modern medicine.

Websites/Clinics

Post Graduate Training

  • Helicopter Underwater Escape Training (HUET)
  • Aeromedical Evacuation (AMEC)
  • Skin Cancer Medicine
  • Clinical Nutrition Management
  • Dermatolog

Tertiary Qualifications

  • Bachelor of Medicine, Bachelor of Surgery (MBBS) (Equivalent to MD)
  • Bachelor of International Relations (BIR)

Socials

Dr Olivia Lesslar