in body wi-fi gadgets are warned by doctors by heart attacks.

We recently reported on some intriguing cell phone software that could track your weight or insulin levels and automatically contact doctors if there were any issues. Now researchers are taking that to the next level with implantable sensors that can wirelessly communicate with doctors automatically in case of an emergency.

The sensors use Bluetooth, the same tech that lets you use a hands-free kit in your car sans wires, and would be implanted in the body to monitor heart rate and other statistics, automatically warning doctors of irregularities. Additional sensors applied to medication dispensers could raise alarms if a prescription wasn't being adhered to. And, should you fall unconscious, a call to the local emergency services could be placed for you.

Soon, it seems, you won't even have to say "I've fallen and I can't get up!" to get some help!