ETH Zurich researchers have developed smart sportswear to determine if someone is exhausted. Are you tired from work? Or has your body reached its limit during workouts? Do you wish you had a way to monitor your fatigue levels without having to constantly check in with your body? Well, ETH Zurich researchers have got you covered with their new invention: smart leggings equipped with a textile sensor that measures your exhaustion in real time! (Photo : Oliver Sjöström/ Pixabay ) Special Yarn Led by Professor Carlo Menon, Head of the Biomedical and Mobile Health Technology Lab, the team has created a stretchable sensor that is integrated directly into the material fibers of the leggings.