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WiFi signals can measure heart rate

(news.ucsc.edu)
463 points bookofjoe | 1 comments | 04 Sep 25 14:53 UTC | HN request time: 0s | source
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hollerith ◴[04 Sep 25 17:18 UTC] No.45129694[source]▶
WiFi equipment can see your heart beating, but don't worry, it cannot possibly have any harmful effects on human physiology.
replies(6): >>45129788 #>>45129813 #>>45130057 #>>45131028 #>>45131218 #>>45134004 #
1. ceejayoz ◴[04 Sep 25 19:07 UTC] No.45131028[source]▶
I have a superficial radial artery. You can take my pulse just by looking at the shadow on my wrist moving in the right lighting. Does this have "harmful effects" on my physiology?