Earlier, and perhaps more basic, LED masks usually provide just one primary colour treatment mode, such as red or blue, ...

Inward-turned eyes, on the other hand, are usually treated with green and yellow colors. Syntonic Phototherapy Research There has been a lot of research conducted on the effects and benefits of ...

Today, 101 years after the installation of the first modern, three-lens traffic light, yellow is the new green. Red is the new yellow. Green is the new red. It’s all very mystifying.

Is black a colour? Black isn’t in the rainbow, but where does it fit in the colour spectrum? What makes something appear ...