Intellego Technologies from Sweden will soon be releasing color-changing wristbands that warn users of over-exposure to UV radiation. The disposable wristbands will cost less than a dollar and are easy to wear. When nearing the limit of UV radiation exposure, the band will change color from yellow to a noticeable pink to signal that it is time to head into the shade. Scientists hope that this new development will help users reduce the risk of getting skin cancer.
(Image Credit: University of Strathclyde Glasgow