Achondroplasia Further information: The most recognizable and most common form of dwarfism in humans is achondroplasia, which accounts for 70% of dwarfism cases, and occurs in 4 to 15 out of 100,000 live births.
They pose the theory that perhaps we see so many short-statured, elderly people because they are, in fact, living longer than their taller peers.
Physical effects of malformed bones vary according to the specific disease.