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a great and amaging facts:- 1)the heart pumps 1.5 million gallons of blood a year! 2)humans are only animals that cry! 3)on an average' a person has about 1500 dreams in a year! 4)a yawn may be telling you that your needs more oxygen!if you are afraid that you might die laughing, you are suffering from 'cherophobia' 5)the skin is the largest organ of the body and weighs twice as much as the brain! did u like them? do u have some more facts?