Host 01 · Hamburg & Berlin, DE

Niko Hems.

Longevity expert, data-driven health strategist, and Head of Growth at YEARS — a Berlin diagnostics clinic. Co-host of Return on Health, and founder of Project Peakspan, an open N=1 biomarker experiment.

Niko Hems

About Niko.

Niko is a longevity expert focused on prevention and data-driven health. He leads growth at YEARS, a Berlin diagnostics clinic, hosts Return on Health, and runs Project Peakspan — an open N=1 biomarker experiment that documents what actually moves his own numbers.

He studied business and data analytics at Nova SBE and UC Berkeley, then completed a second Master's in Longevity at the Geneva College of Longevity Sciences. He now works at the intersection of health data, longevity science, and preventive system design — and uses that lens on every conversation on the podcast.

Principles: question assumptions, rely on evidence, separate confidence from competence. Fundamentals compound. Fads don't.

Areas of focus
Longevity
Biomarkers, VO₂max, metabolic health, early detection and the hidden phase before disease.
Prevention systems
Designing infrastructure that makes measurable prevention the default path rather than the exception.
Performance
Strength, Zone 2, recovery and the protocols that actually move long-term outcomes.
Evidence
Effect sizes over headlines, mechanism over anecdote, and honest uncertainty when the data is thin.