Heart
Cardiovascular disease is the leading cause of death and the most preventable. This section covers ApoB, resting heart rate, VO2 max, zone 2 training, and the biomarkers that actually predict risk — often better than the ones your annual physical measures.
This Marker Predicts Heart Disease Better Than LDL — and Most Doctors Never Test It
LDL cholesterol has defined cardiovascular risk for 40 years — but it misses roughly 30% of patients at...
Why Does Your Heart Rate Variability Drop Under Stress? The Answer Changes How You Train
HRV apps show you a number. What they skip is the mechanism — and the mechanism changes everything about...
How Exercise Repairs a Damaged Heart — What 63 Clinical Trials Found
Fewer than 25% of eligible cardiac patients ever attend rehab — yet the evidence shows it reduces...
Why Resting Heart Rate Predicts Your 10-Year Death Risk Better Than Cholesterol
Each 10-beat-per-minute increase in resting heart rate raises all-cause mortality risk by 9%. Research on...
150 Minutes of Weekly Exercise Cuts Cardiovascular Death Risk in Half -- But Most People Are Doing the Wrong Kind
A 2022 meta-analysis of 30 million people found 150 minutes of weekly exercise cuts cardiovascular death...