Colour 
How does colour effect us? Certain colours remind us of past events that are a factor in presentations. For instance, colour can increase productivity, speed recovery time in hospitals, or influence the passing of time. A red room causes us to perceive time as moving slowly where as a green or blue room has the opposite effect. Furthermore, your choice of colour selections is dependent upon how you associate emotion and colour. A new look in more energetic colours can recharge energy, improve self confidence and stimulate immune system. Colour is a powerful tool of communication and should reflect the image you wish to create and feel most comfortable with.