American scientists have made significant progress by preparing electronic skins with a large number of sensors that store energy in human sweat. Researchers at the University of California said that artificial leather, which is applied directly to the human body, consists of an elastic rubber material. This allows installing many sensors: sensors for additional metabolic products that can provide information about heart rate, body temperature, blood sugar levels, as well as health status. Such artificial leather is energy efficient, uses human sweat for its work, and does not require an external energy source.