Root-cause analysis
We explore the deeper drivers of symptoms — lifestyle, metabolic stress, hormone shifts, inflammation and epigenetic influences.
Doctor-led longevity medicine
Feel like yourself again — with medicine built around you.
Preciva Health is a doctor-led integrative clinic for people who want more than symptom management. We combine evidence-based medicine with a deeper look at hormones, metabolism, stress and lifestyle, so the plan is shaped around your biology and your goals.
Prevention-first
Proactive healthspan and chronic-disease risk reduction.
Hormone-aware
Support for perimenopause, metabolic health and vitality.
Personalized
Medical care shaped around your biology, history and goals.
GMC-registered clinician
FAAMFM · ABAARM · MRCGP
London, United Kingdom
How we work
A modern, integrated path to feeling like yourself again.
Rather than stopping at symptom management, we look for the biological patterns behind fatigue, hormone imbalance, chronic stress, inflammation and declining resilience.
Systems balance
Health improves when your systems work together. We build a tailored roadmap to restore equilibrium, not just temporary symptom relief.
Longevity-focused care
Our goal is to extend not just lifespan but healthspan — so you can feel capable, clear and well for longer.
Why Preciva exists
Where medical expertise meets personal transformation.
Preciva Health was created for people who know something is not quite right, even when standard checks say they are “fine.” It is for those who want a deeper understanding of their body, clearer answers and a plan that respects both science and the complexity of real life.
Your care is led by Dr. Rahna Rehman, a medical doctor and cancer survivor whose perspective combines formal medical training with the insight that comes from living through serious illness and recovery.
“Because your health is as unique as you are.”
That belief shapes everything we do, from how we investigate symptoms to how we tailor support for hormones, prevention and long-term wellbeing.
Clinical focus
Longevity and prevention
Strategies designed to reduce risk, support resilience and protect long-term vitality.
Hormone and metabolic health
Thoughtful, data-aware support for fatigue, perimenopause, metabolism and day-to-day wellbeing.
Personalized wellness assessments
Deeper reviews that combine medical insight, biomarkers and your lived health experience.
Featured areas
What support can look like at Preciva Health.
Three connected pathways, one body of care. Most patients start in one and naturally weave in elements of the others as their plan evolves.
Advanced longevity care
We focus on extending healthspan through proactive care, personalized lifestyle strategy and evidence-based longevity medicine.
- Prevention-first health planning
- Epigenetic and lifestyle insight
- Long-term vitality support
Hormone and metabolic optimization
For women navigating change — and anyone struggling with energy, weight or internal imbalance — we take a measured, individualized approach.
- Perimenopause and beyond
- Targeted hormone review
- Metabolic resilience strategies
Comprehensive wellness assessments
We go beyond a routine check-up to build a fuller picture of your current health, your risk profile and the next best steps.
- Deep-dive consultations
- Advanced biomarker perspective
- Personalized follow-up roadmap
Patient reflections
What patients value most about the Preciva experience.
A calm, personalized consultation style matters just as much as clinical depth.
“Dr. Rahna Rehman took time to connect my symptoms in a way nobody else had. I came away feeling calmer, clearer, and finally confident about the next step.”
“The consultation felt intelligent and deeply personal. Dr. Rahna Rehman explained the medical reasoning clearly and made the whole process feel reassuring from start to finish.”
“What stood out most was the balance of medical rigor and compassion. The recommendations felt practical, evidence-based, and designed around my actual life.”
“I appreciated how premium the experience felt without ever feeling cold. Everything was thoughtful, organised, and genuinely focused on long-term wellbeing.”
“Preciva brought together the kind of medicine I had been looking for: nuanced, preventive, and focused on helping me function well rather than simply cope.”
“Dr. Rahna Rehman created a plan that felt both medically robust and easy to follow. I felt listened to as a whole person, not treated like a list of symptoms.”
“I had been searching for a more thoughtful kind of private care, and this felt exactly right. The advice was clear, balanced, and genuinely confidence-building.”
“From the first conversation onward, everything felt calm and professional. I left with a realistic plan and the sense that Dr. Rahna Rehman truly understood what I needed.”
Transparent next steps
Clarity around fees, process and how to get started.
Clear fees. A transparent intake. A confidential, unhurried first consultation — so you know exactly what to expect before you book.
From the journal
Evidence, insight and practical health education.
Longer-form writing on integrative medicine, hormone health and practical longevity — written by Dr. Rahna Rehman for patients, not peers.
Integrative medicine
Hormone health
Regenerative medicine
Longevity