ApoB vs LDL: The Marker That Predicts Heart Disease Better
ApoB counts atherogenic particles directly, and pooled studies find it tracks heart risk at least as well as LDL-C. What the number means, and how to lower it.
Heart health
Heart Rate Variability and Stress: Why HRV Drops and How to Train
Stress, poor sleep and inflammation lower vagal tone, so HRV falls before performance does. How to read your trend, when to back off, and what tends to raise it.
Exercise and the Damaged Heart: How Cardiac Rehab Helps Recovery
A Cochrane review of 63 trials found exercise-based cardiac rehab cut cardiovascular deaths by about a quarter. What it does to a weakened heart, and how to get referred.
Resting Heart Rate: What Your Number Predicts and What Lowers It
Each extra 10 bpm of resting heart rate is linked to about 9% higher mortality in a meta-analysis of over a million adults. What the ranges mean, and how training and sleep lower yours.
Cardio and Heart Risk: 150 Minutes a Week at the Right Intensity
About 150 minutes of moderate activity a week is linked to substantially lower cardiovascular mortality in large pooled cohorts. How to split that time between Zone 2 and intervals.
CoQ10 vs Ubiquinol: Absorption, Statin Depletion and Trial Doses
Ubiquinone and ubiquinol differ in absorption, statins lower CoQ10 levels, and the Q-SYMBIO trial tested it in heart failure. What the trials found, the doses used, and who is most likely to benefit.
Omega-3s and Fish Oil: Sorting the Evidence from the Hype
EPA and DHA are linked to fewer cardiovascular events but do not reliably improve cognition, and high-dose fish oil raises atrial fibrillation risk in trials. Fish first, supplements second.
Heart Rate Variability: Reading the Trend and Training by It
Heart rate variability promises a window into your recovery and readiness—but it's noisier, more personal, and easier to misread than the apps selling it would have you believe.
Sections