Saturated hues of red have been shown to raise people’s heart rate and blood pressure, and it's been said to increase one's appetite as well. Red is active, aggressive, and outspoken. It is also considered an intense, or even angry, color that creates feelings of excitement or intensity. In a study by two University of Rochester psychologists, they found that the color red makes men feel more amorous toward women. Most surprisingly, men are unaware of the role the color plays in their attraction.
Red is the most arrogant, attention-grabbing, and energetic color of the spectrum. In terms of temperature, it is the warmest color. Emotionally, we relate red to love and passion. Red is the color associated with our hearts: roses are red, and so are boxes filled with chocolates on Valentine's Day. It is the color that excites us most and makes us take notice--the color of stop signs, fire engines, and alarms. Red is an in-your-face color that demands your attention, not a color that sits idly by waiting for you to take notice. Because red excites us, it is not the choice of color in psychiatric wards, prisons, or hospitals. Excessive subjection to red can lead to agitation, anger, and even violence.