A berry-sized thermometer measures body temp. But you have to eat it.

But you have to eat it. The sensor developed at MIT continuously monitors this vital sign from inside the body. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. The silicon chip, the battery, and the antenna on this sensor are completely ingestible. Breakthroughs, discoveries, and DIY tips sent six days a week.