Heart rate tracking bracelets connected
As far as I know bracelets that track heart rate and other body symptoms exist that can send the data to doctors wirelessly, and alarm them in emergency situations, eg. cardiac arrest.
However, the infrastructure of hospitals that offer this service often doesnt exist. What if different bracelets would be connected wirelessly, so that relatives see the health status of each other, are alarmed in emergency and call a doctor.
In case of cardiac arrest people are found often too late. In this cases some minutes can me the difference between life and death. These bracelets would make it possible to fastly alarm the hospital, get help; without a big infrastructure needed.