Imagine popping a pill which can then monitor your insides for potential signs of poor health.
That is what a team of researchers from the Massachusetts Institute of Technology has been working on.
This one is a pill-sized ingestible capsule designed to monitor blood in the gastrointestinal tract.
About the size of a pen cap, the prototype sensor combines electronics with useful bacteria.
With this fearsome combination, it can detect signs of excessive bleeding in the gut, and then transmit the results to your smartphone.
The project is still in prototype phase and none of the sensors have actually been ingested by a human.
They have, however, been successfully tested on the guts of a pig, and the team hopes that human trials could be a possibility soon.