Abstract: The invention is directed to body cooling devices. The devices are provided in three embodiments: a headband, a wristband, and an upper armband. The wristband version is worn on one of the user's wrists like a wristwatch or bracelet, and monitors body temperature and pulse rate with sensors. The wristband version further cools the body with cooling elements. The cooling elements and sensors are positioned on the inner surface such that they are in contact with the user's skin. Graph readouts of body temperature and pulse rate are displayed on the outer surface on a curved visual display, and transmitted via Bluetooth 4.0™. The headband version is a scaled-up version of the wristband version, providing the same features, and is worn around the head at the forehead level. The upper armband version provides the same features except the visual display, and further provides a medium range Bluetooth 4.