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- Our hearing is so sensitive that it can distinguish between hundreds of thousands of different sounds.
- The longest boxing match ever known took place in New orleans in 1893. It lasted 7 hours 19 minutes and ended in draw.
- Too much secretion of growth hormone in children makes their body excessively large, resulting in giantism.
- The human heart beats approximately 100,000 times a day.
- A liver cell is specialised enough to perform more than 500 operations at a time
- A person weighing 60kg has 5 litres of blood in his body.
- Our heart pumps about 43000 litres of blood per day.