Wearable human-machine interfaces – devices that can collect and store important health information about the wearer, among other uses – have benefited from advances in electronics, materials and mechanical designs. But current models still can be bulky and uncomfortable, and they can’t always handle multiple functions at one time. Researchers reported Friday, Aug. 2, the Read more about An ultrathin, mechanically imperceptible, and stretchable wearable electronic device[…]