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Google wants to take your temperature and count your heartbeat
The Mercury News

Google wants to take your temperature. And count your heartbeat. And watch your frown turn upside-down.

The question is, to what end?

Google has filed a patent application for technology that would allow it to monitor mobile-device users’ vital signs and facial expressions, so it can adjust search results according to the emotional reactions they generate.

But a much more powerful motivation exists for developing this technology, said Forrester Research analyst James McQuivey. If the technology works for Google, the Internet giant can make the technology work for advertisers, McQuivey said.