Biomarkers & Lab Values

Which blood markers and biomarkers actually matter, and how to read them.

All Articles Biomarkers & Lab Values Cancer Screening & Early Detection Check-ups & Diagnostics Comparisons & Alternatives Longevity Fundamentals Nutrition & Lifestyle Research & Evidence

Biomarkers & Lab Values / Nutrition & Lifestyle

Visceral Fat: Why Belly Fat Matters More Than Weight | YEARS

For decades, the public health debate has focused on weight and Body Mass Index (BMI). But these numbers only tell half the story. You can have a "normal" BMI and still carry a high metabolic risk…

Niko Hems, M.Sc.·28 July 2026

Comparisons & Alternatives / Biomarkers & Lab Values

NAD+ Supplement: Evidence, Effects & What to Measure | YEARS

NAD+ is ubiquitous. In longevity forums, the daily routines of tech CEOs, and the aisles of supplement providers, the molecule is touted as a key to cellular energy, repair, and a healthier life…

Niko Hems, M.Sc.·19 June 2026

Biomarkers & Lab Values / Longevity Fundamentals

Longevity Biomarkers for Performance & Recovery

You train regularly, watch your diet, and prioritize sleep. You feel good. But do you really know how capable your body is? How well it recovers? And what foundation you are laying today for a long…

Niko Hems, M.Sc.·19 June 2026

Biomarkers & Lab Values / Longevity Fundamentals

Longevity Blood Markers: The Tests That Actually Matter | YEARS

You regularly go for preventive check-ups and get your blood tested. That is an important first step. But what if this routine check-up only scratches the surface? What if the truly decisive risks…

Niko Hems, M.Sc.·19 June 2026

Biomarkers & Lab Values / Check-ups & Diagnostics

VO2 Max Testing Berlin: The Ultimate Longevity Biomarker

Your smartwatch gives you a number for your cardiovascular fitness. Your doctor measures your blood pressure and cholesterol. Yet none of these metrics hold as much prognostic power for your life…

Niko Hems, M.Sc.·19 June 2026

Biomarkers & Lab Values / Comparisons & Alternatives

NAD+ Supplements: Evidence, NMN vs NR & What to Measure

NAD+ is everywhere. From longevity forums and tech CEO endorsements to supplement aisles, it is touted as a key molecule for energy, cellular repair, and a longer, healthier life. The promises are…

Niko Hems, M.Sc.·15 June 2026

Check-ups & Diagnostics / Biomarkers & Lab Values

What Does a Longevity Check-Up Actually Measure?

You feel healthy. Your last doctor's visit was a year or two ago, and everything was normal. You are in your mid-40s, professionally engaged, and occasionally find time for sports. So why consider a…

Niko Hems, M.Sc.·14 June 2026

YEARS Clinic: Patient undergoing blood draw

Biomarkers & Lab Values / Check-ups & Diagnostics

Essential Blood Tests in Your 30s: A Comprehensive Guide | YEARS

You are in your early 30s. The rent or mortgage is paid, and your career is on track. You feel healthy, fit, and perhaps only occasionally a bit tired. A comprehensive health screening isn't exactly…

Niko Hems, M.Sc.·08 June 2026

Biomarkers & Lab Values

Testosterone Levels in Men: Normal Ranges, Symptoms & TRT

Testosterone is more than just a hormone. In the public eye, it represents masculinity, strength, and vitality—yet it is simultaneously the subject of myths, marketing promises, and medical…

Niko Hems, M.Sc.·02 June 2026

Biomarkers & Lab Values / Check-ups & Diagnostics

Lp(a) Lipoprotein(a): The Genetic Heart Risk Factor Nobody Tests For

Imagine a risk factor for heart attacks and strokes that is more potent than high cholesterol. It is elevated in one out of every four Europeans. It is almost entirely determined by your genes, and…

Niko Hems, M.Sc.·29 April 2026

Comparisons & Alternatives / Biomarkers & Lab Values

Garmin VO2max Accuracy: Smartwatch Estimate vs. Lab Test | YEARS

Your Garmin watch shows you a VO2max score after every run. A score of 45. Yesterday it was 44. A week ago, 46. You track this trend, celebrating the increases and feeling frustrated by the dips…

Niko Hems, M.Sc.·21 April 2026

Cancer Screening & Early Detection / Biomarkers & Lab Values

Liquid Biopsy: A Comprehensive Guide to Early Cancer Detection

Cancer is most often diagnosed when symptoms appear, a point at which the disease is frequently advanced. Detecting tumors long before they become palpable—finding direct evidence of cancer in the…

Dr. med. Jan K. Hennigs·20 April 2026

YEARS Journal

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