[SUNDAY] What Your Morning HR Is Really Telling You

The study you should read this week A 2016 meta-analysis from the CMAJ pulled together 46 prospective cohort studies — 1.2 million people, 78,000 deaths. The finding: for every 10 beats per minute higher your resting heart rate sits, your all-cause mortality risk goes up about 9 per cent. Linear from 45 bpm upward, no point where lower stops being better. Independent of blood pressure, smoking, BMI, cholesterol, diabetes, and physical activity. Resting heart rate is carrying its own signal. Plus what to do with this if you race, ride high volume, or train time-capped — and why the adaptations that lower your resting heart rate are the same adaptations that predict a longer, healthier life. Study: Zhang D, Shen X, Qi X. Resting heart rate and all-cause and cardiovascular mortality in the general population: a meta-analysis. CMAJ 2016;188(3):E53–E63. DOI: 10.1503/cmaj.150535 Links: YouTube companion: Cyclist Over 50? Your Fitness Can't Tell You This. Guided is live — two coaches, weekly review, my read behind every plan: https://go.semiprocycling.com/go/btsmfgDaily cycling intelligence from SEMIPRO CYCLING, produced with AI-assisted research, scripting, and synthetic voice.