One Man Was 9 Feet Tall
Robert Wadlow (1918-1940) was the tallest man in medical history, according to The Guinness Book of World Records. He stood 8 feet, 11.1 inches tall, thanks to gigantism, a rare condition in which too much growth hormone makes a child unusually large. He was more than 50 percent taller than the average man. Also known as giantism, or… Read More »