[Lee Stewart]

The colors red and yellow were chosen for a specific reason—and no, it wasn’t because they looked nice with Ronald McDonald’s clown-like face. It actually has to do with science. The color red is stimulating and is associated with being active. It also increases heart rate, which helps to jump-start your appetite. The color yellow is associated with happiness and is the most visible color in daylight, so that’s why a McDonald’s sign is so easy to spot on a crowded road.