Wearable monitors are on their way to being more stretchable, flexible and capable of more precise measurements than ever before. An international team of researchers led by Huanyu “Larry” Cheng, Dorothy Quiggle Career Development Professor in Penn State's Department of Engineering Science and Mechanics, published a review of modern approaches and ongoing improvements today (July 16) in the International Journal of Extreme Manufacturing. Co-authors include Wanqing Zhang, Penn State and the University of Glasgow; Ling Zhang, Penn State and the Harbin Institute of Technology; and Yabin Liao, Penn State Erie, The Behrend College.