Researchers have now developed a new material that can do exactly that, making wearable electronics more durable while reducing electronic waste. Many wearable devices, such as fitness trackers, electronic skin, and flexible health sensors, rely on soft materials that stretch and bend with the body. This is important because wearable sensors depend on metal circuits to carry electrical signals. The researchers built several prototype devices, including electronic skin that measured temperature, breathing moisture, and body movement. Even after being rubbed against artificial skin 800 times, the devices continued to produce clear signals.