Have you ever woken up to bright morning skies feeling energized? A big reason for your mood is the high-intensity blue light coming from the sun. Among the visible light spectrum, blue wavelengths ...

Blue light usually comes from the sun but also from digital screens and LED lights. Some experts believe artificial sources may be causing eye damage in humans, but animal studies are inconclusive.

Blue light therapy uses light to treat certain conditions on or just under the skin. It’s considered a pain-free procedure. Blue light therapy becomes photodynamic therapy when it uses a combination ...