Artificial light has extended our days, but it is also quietly reshaping how our brains and hearts function at night. A growing body of research now links bright bedrooms, glowing streets and ...

What is blue light? “All the light we see is made up of different wavelengths of light,” says Vivienne Sinh Hau, MD, an ophthalmologist at Kaiser Permanente in Riverside, California. “Certain ...

In the modern age of technology it is not uncommon to come home after a long day at work or school and blow off steam by reading an e-book or watching television. Lately, however, scientists have been ...