It's no secret that once we hit 40, our skin starts going through some pretty rough changes. Those pesky crow's feet around our eyes seem to appear out of nowhere, once-cute freckles are now joined by ...

In our increasingly digital world, we’re surrounded by blue light sources from the moment we wake up until we finally put down our phones at night. This high-energy light radiates from our smartphones ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? At the simplest level, different colors of light have different wavelengths.

If you've ever wondered how traffic lights work and how they can detect your car, you've probably also been curious about those small blue lights mounted above the signals themselves. These blue ...

Forget harsh bleach—scientists have discovered that powerful blue LED light can erase yellow stains from sweat, food, and oils without harming delicate fabrics like silk. By harnessing oxygen in the ...

Wake up. Check your phone. Open your laptop. Spend 10 hours toggling between digital screens like Zoom, Slack, and Netflix. Repeat. If this sounds like your day-to-day, welcome to the club — one ...