You’ve heard the phrase too many times to count: “Once in a blue moon.” But what is a blue moon, exactly? (Hint: The moon doesn’t actually turn blue, unfortunately.) Despite the misleading name, blue ...

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.

JetBlue's standard economy fare gets you a free carry-on, seat selection, and no change or cancellation fees. Picture this: You seek to buy a JetBlue Airways ticket and see multiple fare types listed ...

You may know them by the acronym ROY G BIV. Together, they make the white light you see when the sun -- the main source of blue light-- is shining. Fluorescent and LED (light-emitting diode) light ...

Sleep is one of the pillars of optimal health. However, people are sleeping much less than they did in the past. Sleep quality has also declined. The use of artificial lighting and electronics at ...