New Thermometers Stick Like Temporary Tattoo

Using new wearable electronics as light and thin as temporary tattoos, scientists can now take a person's temperature and monitor not only their health but also their mental state.Taking a person's temperature can reveal more than a fever. For instance, analyzing tiny, regular variations in body temperature can reveal how blood vessels are constricting and dilating, which is linked to cardiovascular health. Monitoring changes in temperature can even shed light on a person's mental state.The best existing technologies for measuring skin temperature include simple, paste-on sensors and sophisticated infrared cameras. Although paste-on sensors are cheap and help doctors monitor patients as they move freely, these devices cannot monitor changes in great detail, across the skin. Moreover, they irritate the skin, changing its natural responses. While infrared cameras enable high-precision temperature measurements in high detail across the skin, they are expensive, and require patients to keep still.This wearable thermometer may give better readings of temperature across the skin.