https://www.engadget.com/2018/09/12/apple-watch-4-falls-heart-problems/
ref - https://www.engadget.com/2018/09/12/apple-watch-save-life/
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EKG feature - “works by passing a current through your chest after you touch the crown of the device. “
src - https://gizmodo.com/is-the-new-apple-watchs-ecg-feature-legit-1829010308
origin - https://www.pipiscrew.com/2018/09/apples-latest-watch-can-sense-falls-and-heart-irregularities/ apples-latest-watch-can-sense-falls-and-heart-irregularities