YEARS Journal

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Insights, guidance, and editorial content on prevention and longevity.

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

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

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

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

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

GLP-1, Ozempic & Longevity: Evidence, Risks & Biological Age

Ozempic, Wegovy, Semaglutide. These names dominate headlines, social media feeds, and conversations in medical practices worldwide. What began as a medication for type 2 diabetes has become the…

Niko Hems, M.Sc.·02 June 2026

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

Person outside walking - behind him sunlight

UVA Skin Aging: Causes, Prevention & Diagnostics | YEARS

Most people associate skin aging with the passage of time. With every birthday, a new line appears on the face. Yet, the process is far more complex. A significant portion of what we perceive as…

Niko Hems, M.Sc.·01 June 2026

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

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

Clinique La Prairie vs. YEARS: An Honest Longevity Clinic Comparison

For many, the search for the right longevity clinic ends in one of two places: the legendary Clinique La Prairie on Lake Geneva or a modern, outpatient clinic like YEARS in Berlin. Both promise to…

Niko Hems, M.Sc.·21 April 2026

Ezra vs. Prenuvo vs. YEARS: A Full-Body Scan Comparison

The market for preventive full-body screenings is expanding rapidly. Driven by a new wave of health consciousness and the desire to proactively address disease, more people are seeking comprehensive…

Niko Hems, M.Sc.·21 April 2026

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