Some men and women have very fragile bones that break easily. They describe their bones being like wings of a butterfly or egg shells.
osteogenesis imperfecta or OI, means that some of them grow to be very short and their spinal cores may have severe anomalies. OI often has deteriorating influences on hearing, teeth and ability to walk, as well. In spite of this or maybe as a result, they are very intelligent and have a lot of stamina. For example in comparison more people with OI graduate from universities than those without the disease.
For Osteogenesis imperfecta Society