Robert Wadlow's cause of height was ascribed to pituitary gigantism. This rare condition results from hyperplasia of the pituitary gland. An oversecretion of the human growth hormone characterises it, ...

Robert Wadlow was able to lift his 5 ft 11 in (180 cm) tall, 170 lb (77 kg) father up the stairs to their home when he was only nine years old. He was the first of five children born to Harold ...