Some experts are so convinced that colors have a strong effect on us that they believe colors can be used to heal. They say that by concentrating our thoughts on dertain colors, we dan cause energy to go to the parts of the boby that need treatment. White light is said to be cleansing, and it can balance the boby's entire system. Yellow stimulates the mind and creates a positive attitude, so it can help against depression. Green,which has a calming and restful effect, is supposed to be good for heart conditions. Books are now available thatteach people how to heal with color. These books provide long lists of ailments and the colors that cam heal them.