It takes a little sweat ... :)

Something revolutionary is rare, something commonsensical and revolutionary at the same time is even rarer, especially when it comes to monitoring bodily processes noninvasingly, a notion whose time as come as seen by tech developed by the University of Cincinnati.

Making a revolutionary biosensor takes blood, sweat and tears.

And saliva, naturally.

University of Cincinnati professor Jason Heikenfeld examined the potential of these and other biofluids to test human health with tiny, portable sensors for the journal Nature Biotechnology.

Heikenfeld develops wearable technology in his Novel Device Lab in UC's College of Engineering and Applied Science. His lab last year created the world's first continuous-testing device that samples sweat as effectively as blood but in a noninvasive way and over many hours.

With luck, the era of painful finger pricks to draw blood will become a thing of the past. :)