Red spots on the skin can appear for a variety of reasons, ranging from harmless to potentially serious conditions. They can be caused by simple irritants like dermatitis, infections such as ringworm, ...

Made from petroleum, red dye 40 is a synthetic food dye. Some studies suggest a link between red dye 40 and ADHD behavior; the dye might trigger or exacerbate behavioral changes in sensitive children.

A new study led by Brown University researchers shows how a water-rich mineral could explain the planet’s color, hinting at a wetter, more habitable past on the Red Planet. PROVIDENCE, R.I. [Brown ...