Tiredness test...
I really don't know how it works, but it's a rarely accuracy. Read all of the description before looking at the picture. The picture down here contains two identical dolphins. It was used in the hospitals to measure the tiredness level of the patients.
Look at the two dolphins how they jump around the water...they are identical... A scientific study revealed that: despite the fact that dolphins are identical, a person who's tired will see some diferences between them, as much as the patient descovers much diferences (between the two dolphins), as much tired he is !
Look at the picture down here and if you find much more that two diferences, that means you must take a break !!!
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