I am not sure exactly how it works, but this is amazingly accurate. Read the full description before looking at the picture. The picture below has 2 identical dolphins in it. It was used in a case study on stress levels at St. Mary's Hospital. Look at both dolphins jumping out of the water. The dolphins are identical. A closely monitored, scientific study revealed that, in spite of the fact that the dolphins are identical, a person under stress would find differences in the two dolphins. The more differences a person finds between the dolphins, the more stress that person...