Stress Indicator Look at the photograph below, and if you find more than one or two differences you may want to take a vacation. A closely monitored, scientific study of one group revealed that in spite of the fact that the dolphins are identical a person under stress would find differences in the two dolphins. If there are many differences found between the two dolphins, it means that the person is experiencing a great amount of stress. If you see a badger, like Tony does, instead of a dolphin, you are in serious trouble.