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Heart rate variability: Why the time between your heart beats matters

It reflects how well your body adapts to stress and recovery, showing the balance between your sympathetic and parasympathetic nervous systems.

The Star MalaysiaREVATHI MURUGAPPAN2026-09-23 02:00查看原文 ↗

Unlike wearables on the wrist, medical-grade HRV devices used by clinicians are usually placed using two adhesive ECG electrode patches attached directly to the skin on the chest: one under the right collarbone and one on the lower left ribcage. — RAJA FAISAL HISHAN/The Star

Ever since fitness trackers came onto the market, it has been a fascinating journey of constant innovation.

While back in the day only pedometers were available to count steps, today’s sophisticated wearable technology provides a wealth of health data.

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