Adam Rainer had quite a unique and bizarre condition where he was both a dwarf and a giant in his lifetime. Throughout his childhood, he was considered a small and weak dwarf; he was even denied entrance to the military when he tried to enlist. However, once he turned 21, his body rapidly started to grow. In a decade, he went from 4’10” (1.2 meters, 25.4 cm) to 7’1″ (2.1 meters, 2.54 cm). He suffered from acromegaly, a disease where there’s a tumor on the pituitary gland.