Your smartwatch’s “optimal zone” might be pushing your heart into danger
Your smartwatch shows you’ve hit your target heart rate – but what if that reading is dangerously misleading? The fitness tech we rely on to optimize our workouts might actually be pushing us into risky territory without us even knowing it. The dangerous gap between wearable tech and medical reality Smartwatches use photoplethysmography (PPG) technology … Lire plus