Real-Time Hydration Sensor Tracks Levels via App
Scientists have developed a non-invasive sensor that tracks hydration levels in real-time. The device, presented in the journal PNAS, sends data to an app, allowing users to monitor their hydration status during daily activities.
The sensor, developed by researchers at the University of Texas, uses bioimpedance technology. It measures water levels in the body's tissues by passing a low-intensity electrical current through the arm. Tests have shown that the sensor's readings align well with other body hydration status measures.
Researchers are working on improving the device's comfort and effectiveness. They are exploring new designs, such as breathable electronic tattoo sensors or sweat-absorbing devices. MIT researchers are developing an improved version that can look like a tattoo and supports sweat analysis.
The goal is for anyone to easily know their hydration status at any time. The sensor could be particularly useful for athletes, firefighters, or workers in hot environments, and has potential clinical applications. While the current sensor measures relative hydration level changes, researchers are working on establishing absolute reference values in the future.
