Longevity
The science of living longer and healthier — biomarkers, preventive care, and anti-aging research.
Men with SDNN below 70ms face 73% higher cardiac event risk per a 2025 Frontiers Cardiovascular Medicine study. This guide explains what your HRV score means and 8 evidence-based ways to raise it.
Find out how to check your biological age as a man over 40. Compare blood biomarker tests vs. epigenetic clocks, understand what the results mean, and get evidence-backed ways to lower your score.
Calculate your biological age from 9 routine blood test values using the clinically validated PhenoAge formula. See how your body's aging compares to your chronological age.
Finnish men who sauna 4-7x/week cut cardiovascular death risk by 50%. Here's the full science on sauna benefits for longevity, brain health, and recovery.
VO2 max predicts lifespan better than cholesterol or blood pressure. Here's how men over 40 can raise their score with science-backed training protocols.
Discover 15 evidence-based longevity habits for men over 40 that reduce mortality risk and extend healthspan. Actionable steps backed by peer-reviewed research.
Discover why zone 2 cardio is the most important exercise for longevity after 40. Includes heart rate targets, weekly plans, and the science behind it.