Sultan Kosen, Tallest Man In The World, 2 Meters 47 Centimeters, Turkey

Human height is the distance from the bottom of the feet to the top of the head in a human body standing erect.
When populations share genetic background and environmental factors, average height is frequently characteristic within the group. Exceptional height variation (around 20% deviation from average) within such a population is usually due to gigantism or dwarfism; which are medical conditions due to specific genes or to endocrine abnormalities.