Invention tagged posts

How a Watch was used to Discover Heart Rate Variability (HRV) & How it’s Discovery has Led to Managing Wellness & Health.

Variability is the law of life… (Wiliam Osler, Physician and educator, 1849-1919 (Olser, 1903, p.327).
watch
The Rev. Stephen Hales (1733) was credited to be the first individual to notice that pulse varied with respiration via a watch with a second hand that could be paused, also known as the ‘Physician’s Pulse Watch”.

The first recording of RSA (Respiratory Sinus Arrhythmia, was conducted by Carl Ludwig in 1847.

The year, 1895 brought advanced insight and awareness into Heart Rate Variability (HRV) with the introduction of ECG (electrocardiogram)...

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