倾听你的心跳：心率变异性如何揭示心理健康

Listen to your heart Smartwatches commonly use heart rate variability to monitor stress. Helen Thomson examines what this metric can reveal about our mental health WITH a Whoop health tracker strapped to my wrist for the past year, I’ve had an unusually detailed window into my biology – sleep, blood oxygen, steps and, most intriguingly, heart rate variability, or HRV. The latter was a new metric for me and has quickly become my go-to measure for stress. It turns out I’m not alone in thinking this metric is valuable. A growing body of research has been investigating HRV’s link with mental health. But first, what actually is it? …