: New research has produced 3D-printable, stretchable fabrics that can power medical sensors or LEDs just by touching the skin [8, 11].
: To keep enzymes functioning properly, the body must stay within a narrow temperature range [14]. When you get cold, your body uses brown fat or shivering to generate extra warmth [4]. When you overheat, the hypothalamus triggers sweating and vasodilation (rushing blood to the skin) to release excess heat [9]. The Technology: Harvesting "People Power" Body Heat
Engineers are developing —thin, flexible materials that convert the temperature difference between your skin and the air into electricity [3, 15]. : New research has produced 3D-printable