Non-intrusive technology which can work at home to monitor people' vitals is a game changer, there are so many applications to this. Research is at the beginning.

Indeed there are privacy issues with big providers doing this, but then this really opens up so many possibilities if done well.

I assume some places already use thermal cameras to detect people who are sweating profusely.

Using both together might be a decent way of flagging people who might otherwise slip through security.

Of course there would be many false positives, so it wouldn't be good enough on its own.

It's like me telling you: With using just audio I can trace your exact coordinates! ... By using an array of microphones in a room.

opens article

> First, the researchers had seven volunteers sit in a chair at various distances of 1, 2, and 3 meters from two ESP32 microcontrollers that used Pulse-Fi to estimate the volunteers’ heart rates

Yup

Like ages ago it was going to be Intels docking station standard (WiGig). It died, companies like IgniteNet bought up all the Dell wigig chips, and used them to prototype P2P wireless radios, ultimately building out a new class of metro p2p wireless used by every major vendor. Then it became a component of 5G, mostly used for backhaul but still capable in a lot of Massive MIMO handsets. Some handsets trialling it for in home wifi. And now the chips are probably going back into your laptops/Homes to detect your biometrics.

https://news.ycombinator.com/item?id=45127983