Overview of technology in medicine - covers health trackers and other devices such as a belt pack that deploys airbags to prevent injury from falls. At 47:45 peripheral nerve stimulation for control of tremors in PD. Some creepy stuff like wifi for measuring the vitals of up to 10 people in a room.
At 51:23 Kraft discusses 'Stuff That Works' - an online health community designed to use crowdsourced information and machine learning to find solutions to health problems. Seems similar to the CliniCrowd project for mannitol, but more broad & with use of machine learning. I suspect Amazon is doing something similar with Amazon reviews and PillPack data ( without the users/contributers knowing their involvement).