This means more blood flows through to the skin and makes the face feel hot. We turn red because of this sudden rush of blood close to the surface of the skin. People with lighter skin tones show this ...

Through games like "Red Light, Green Light," books, and songs, children learn at a young age that green means go and red means stop. In much of the world, a solid red light at an intersection means ...

Amanda Meyer is affiliated with the Australian and New Zealand Association of Clinical Anatomists, the American Association for Anatomy and the Global Neuroanatomy Network. Monika Zimanyi is ...