Red-light therapy is getting the green light in some health circles, but it’s early yet to say whether that’s a good thing ... to help users lose weight, look younger and balance mood.

When you see the green light appear on your Echo speaker, it'll usually flash in a pulsating motion, while other times, the light spins. If you have a standard Echo speaker like an Echo Dot ...

About 20% of adults in the U.S.—more than 50 million people—have chronic pain. Though the causes are many, including arthritis, cancer, musculoskeletal skeletal disorders, migraines ...

And that leads to the dulling of pain. The researchers next plan to look into the question of why the brain has evolved in a way that allows green light to reduce the sensation of pain.