Red-light masks use low levels of light-emitting diode, or LED, to stimulate skin cells, says Dr. Jennifer Sawaya, a dermatologist at U.S. Dermatology Partners Scottsdale in Arizona.

Almost everyone is raised with the knowledge that the velocity of light in a vacuum is an absolute value of 299 792 kilometers (186 282 miles) per second. Even a single photon cannot surpass this ...

While dark mornings are inevitable in winter, turning the clocks back gives us an extra hour of natural light. At least 15 minutes' exposure to natural daylight, as early as possible in the day ...

Wouldn't it be great if you didn't have to choose between performance, portability and power when you wanted the perfect laptop? With LG, you don't have to. The LG gram delivers pro-level power ...

When you’re working from home you’ll often notice that the light isn’t quite right. That’s because we generally choose our home lighting for non-work things: lounging in the lounge ...

When a treatment arrives with as much fanfare as red light therapy has, the skincare sceptics soon follow. “Does red light therapy actually work?” they wonder. Can red light therapy help with hair ...

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 ...

The right lighting can make a big difference in your home. The way light touches a room, with a warm glow or a sharp, white brightness, can transform its aesthetics. That’s where LED bulbs come ...

All products featured on Architectural Digest are independently selected by our editors. However, when you buy something through our retail links, we may earn an affiliate commission. The first ...

Ikea may not be known for smart lighting but maybe that should change. Ikea delivers a solid smart lighting quartet: affordability, local control, excellent remotes and tons of lighting products ...

From heating hacks to dealing with 'vampire devices', these expert-approved tips offer an easy way to stay warm while keeping ...

Susan Bard, MD, is a board-certified general and procedural dermatologist with the American Board of Dermatology and a Fellow of the American College of Mohs Surgery. Rich Scherr is an updates ...