Each week, I ask a question about a common running science myth. Answer correctly and you'll be entered into the weekly raffle.
During a 60-minute easy run at steady pace, your heart rate drifts up by 8-10 bpm by the end. What does that usually mean?
Tap your answer to lock it in.
A. You’re getting fitter — HR rises as VO₂max improves 📈❤️
B. You’re overtraining — autonomic stress is stacking up 🔴⚠️
C. Cardiovascular drift from rising core temp + sweat loss — normal and expected 🌡️💧
D. Your “easy” pace is actually too fast — target a 2-3 bpm drift instead 🐢💥
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