Apart from recognizing whether something suits you or not, an inner sense tells you which color to wear. Deny this feeling and you could be ignoring a benevolent influence. For example, red increases energy and promotes free movement. For a woman it can reflect changes in the reproductive cycle such as menstruation or ovulation. If you have a sudden desire to wear red it could indicate that you are about to experience a tiring day and need all the help you can get. Interestingly when traffic lights were first introduced people had great difficulty stopping for the red light because on a psychological level red means GO and green means STOP.