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 ...

Your tablet, smartphone, laptop, and flat screen TV all have one thing in common: They each give off blue light. You may know them by the acronym ROY G BIV. Together, they make the white light you see ...

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 ...

Blue light is a high-energy part of visible light from the sun, screens, and light-emitting diode (LED) bulbs. Your cornea and lens don’t block blue light the way they block ultraviolet (UV) rays.

Do you ever think about what staring at screens does to our eyes all day? Harvard Health Publishing investigated blue light and its effects on our sleep and health. Our eyes are continually taking in ...

Blue light therapy may help with depression, but it is still not clear exactly how effective it is. Depression is a mood disorder associated with a loss of interest in activities, low mood, and ...

Karl Lawrence has previously received funding from the sunscreen industry. Take a wander down the skincare aisle of any health and beauty retailer and you’ll be met with a bewildering array of creams ...