This is the next article in our ‘Light and health’ series, where we look at how light affects our physical and mental health in sometimes surprising ways. Read other articles in the series.

Here’s how it works. The speed of light traveling through a vacuum is exactly 299,792,458 meters (983,571,056 feet) per second. That's about 186,282 miles per second — a universal constant ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. And it's not just useful for photography. You can also use a lightboxes to trace artworks, ...

"Red light uses specific wavelengths of light to penetrate the skin and reach your cells. Think of it as giving your cells a little extra boost, like a power-up for your body’s natural systems ...

The 'Before' star discusses her decades-long marriage to actor and author Robert Desiderio Sara Jaye Weiss/Shutterstock For Judith Light, the key to her thriving marriage is not caring about what ...

Apple TV+ Using special effects to de-age actors is a risky proposition, but for Billy Crystal and Judith Light in their new series Before, the effort was worth it. The Apple TV+ supernatural ...

Red light therapy uses light-emitting diodes (LEDs) to treat medical and cosmetic conditions. Some people use it to reduce wrinkles, scars, and acne. It can also be used for dental pain, hair loss, ...

Light therapy lamps have been found to be an effective treatment for seasonal affective disorder (SAD). Seasonal affective disorder can bring on symptoms like depression, hopelessness, and fatigue, so ...

Even if you were aware of them, light pollution made them difficult to see, unless you went to a dark area and let your eyes adjust. Our own galaxy is invisible to nearly 80% of people in North ...

Mike Lee receives funding from the Australian Research Council and the Hermon Slade Foundation Welcome to our ‘Light and health’ series, where we look at how light affects our physical and ...

Wake up lights or sunrise lamps do this by gradually brightening its light that mimics the rising of the sun, awakening you bit-by-bit. Most wake up lights have the option to add sounds towards ...