Red traffic lights make drivers stop. The color red produces a signaling and warning effect. But is this also reflected in the brain? Researchers at the Ernst Strüngmann Institute (ESI) for ...

You probably know that bright lights and the blue glow of electronics at night can hinder your sleep. Well, it turns out that red light may also affect your sleep, but in a potentially helpful way. In ...

Editors' Note: The effects described below failed to replicate in subsequent studies. New psychological research suggests a significant sex effect for the colour red. This colour might be unique in ...