Researchers at the University of Illinois have come up with a breakthrough in health monitoring: tattooable skin sensors.
The skin sensors can be printed directly onto human skin and are made waterproof and durable by using specialized serpentine wires. Technically, the health sensors are temporary because they're applied directly to the surface of the skin, but the potential exists to embed the skin sensors underneath the skin for a more permanent solution. As of right now, the sensors are designed to measure bodily functions like skin moisture, temperature and electrical signals from the nervous system.
The skin sensors may eventually also become available for consumer purchase, which should prove very popular among the workout crowd that wants to measure biometric signs while they exercise.