Who is the Worlds tallest person?

Human height, or stature, is the height of a human being. Adult height generally varies little between people compared to other anthropometric measures. Exceptional height (variation from the average of around 20%) is usually due to gigantism or dwarfism. Adult height for one sex in a particular ethnic group follows more or less a Gaussian distribution (bell curve) but with some individuals lying several standard deviations away from the mean. (The tallest well-documented giant was 8 foot 11.1 inches (2.72 m) tall.) Height is determined by the interaction of genes and environment. Final adult height may be attained anywhere from the early teens to early 20s, though it is most commonly reached during the mid teens for females and late teens for males. A person's height also varies over the course of the day, by an average of 19 mm (¾ in), gradually shrinking as the spine compresses over the course of a day, and stretching back out overnight (Tyrrell, et al. 1985).