UV Wristband Helps You Get Vitamin D Without Sunburn, Queen Mary University of London Study

Now you can measure everything under the sun with the technology you carry. A wristband that monitors exposure to UV rays allows users to soak up the light needed to make vitamin D without getting burned, and without the need for sunscreen. "Vitamin D deficiency is pandemic around the world," says Karin Edgett, co-founder of UVA+B SunFriend. The vitamin is important for managing calcium levels in the body and maintaining healthy bones. In recent years it has also been implicated in reducing the risk of diabetes, arthritis and cancers such as breast cancer.

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