From the Physician

Longevity medicine,
explained clearly.

Physician-authored articles on functional medicine, longevity science, biomarkers, and how to take a more proactive approach to your health — written by Dr. Sadaf Mubeen Mirza.

All Articles

How to read your own blood results — and what "normal" actually means

Your lab report says everything is within range. But "normal" and "optimal" are not the same thing. A physician's guide to reading your results the way a longevity doctor would — with the key markers, the reference ranges that matter, and what standard care consistently misses.

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Why your doctor only sees you when you're sick

The German healthcare system is structurally designed to treat disease — not prevent it. A physician explains why the 7-minute appointment exists, what happens in the gap before diagnosis, and what a proactive model looks like instead.

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The future of medicine is personalised — here's what that means

Personalised medicine is more than a trend. It is a fundamental shift in how we understand and address biological ageing. What genomics, epigenetics, and functional medicine make possible — and why your biology is not a population average.

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What does functional medicine actually cost in Germany?

A detailed, honest breakdown of every price tier — GOÄ rates, §2 Honorarvereinbarung, lab costs, PKV reimbursement, and how functional medicine compares to standard private care. With real numbers, not estimates.

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GLP-1 receptor agonists — what they do, what they don't, and who they're actually for

Semaglutide and tirzepatide are reshaping metabolic medicine. A longevity physician breaks down the clinical evidence, the SELECT trial cardiovascular data, who is an appropriate candidate — and what GLP-1 drugs cannot fix on their own.

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Your gut microbiome is ageing — and it's changing everything else

38 trillion microorganisms. A second brain. The most powerful inflammatory regulator in your body. A physician explains what the microbiome actually does, how it changes with age, and what the science says about shifting it.

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Why your skin is ageing faster than it should — the internal biology of visible ageing

Glycation, oestrogen decline, cortisol dysregulation, and nutritional deficiencies are the real drivers of accelerated skin ageing. None of them are topical problems. All of them show up in blood. A longevity physician explains what to measure — and what to do about it.

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Perimenopause, HRT, and the longevity case for hormonal medicine

The Women's Health Initiative frightened a generation away from HRT. The current evidence tells a different story. A physician explains what perimenopause actually does to the body — and what the science now says about hormonal support.

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Exercise as medicine — the precise prescription most people never receive

VO2max is the single strongest predictor of all-cause mortality. Zone 2 cardio, strength training, and VO2max intervals are not interchangeable. A longevity physician explains the actual prescription — and why most exercise advice gets it wrong.

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Testosterone decline in men and women — the longevity case for hormonal optimisation

Testosterone is not just a sex hormone. It is a longevity hormone — with documented roles in cardiovascular health, cognitive function, metabolic resilience, and bone density. A physician explains the evidence, the diagnostic gaps, and why so many patients fall through the cracks.

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Cortisol, the HPA axis, and burnout — the physiology of chronic stress that accelerates biological ageing

Burnout is not a personal failure. It is a measurable physiological state — with a specific cortisol signature, telomere damage, and a direct link to accelerated biological ageing. A longevity physician explains the biology and what to do about it.

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Insulin resistance as the root of modern disease — a decade of silent dysfunction before diagnosis

The most common metabolic condition in Europe is also the most consistently missed. Fasting glucose and HbA1c are late-stage signals. A longevity physician explains what fasting insulin and HOMA-IR reveal — and why it matters decades before a diagnosis.

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The thyroid beyond TSH — why normal results leave patients undiagnosed

TSH measures what the pituitary is asking for — not whether your cells are actually receiving thyroid hormone. A physician explains the full cascade, reverse T3, deiodinase genetics, and why so many women with thyroid dysfunction are told their results are normal.

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