Biointegrated sensors for long-term, continuous tracking of body chemistry may make health and disease monitoring as easy as turning on your smartphone. Unveiled by Profusa Inc., of South San Francisco, Calif., tiny bioengineered biosensors will soon enable real-time detection of our body's unique chemistry, providing actionÂable, medical-grade data for personal and medical use for as long as two years at a time. The company's technology and vision were presented at the CES Digital Health Summit, Jan. 6-9 in Las Vegas.