For three years in a row, Sultan Kosen has been named the world's tallest living man by Guinness World Records. Interestingly, he's earned this lofty distinction at three different heights. Even more fascinating, in the last three months, the 29-year-old Turkish man has only recently stopped growing thanks to receiving state-of-the-art treatment in the U.S.
Kosen first entered the record books at 8 feet 1 inch; at his next measurement, he was listed as 8 feet 2 inches, and now he's achieved his ultimate adult height at 8 feet 3 inches. He's also in the record books for having the largest hands (11.22 inches) and largest feet (14.4 inches).
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Kosen's extraordinary stature is a result of gigantism. He developed a pituitary tumor as a child, which caused his pituitary gland to produce an excessive amount of growth hormone.
More here: The Body Odd - World's tallest man finally stops growing at 8 feet 3 inches