Disability or useful control group?
Could people with disabilities, have that problem turned to advantage by society, in the form of control grouping for medical and psychological testing of theories? By this, for example, I mean the idea being debated on another forum I belong to that it's lack of exercise that has created a noticeable increase in people being grossly overweight. I said if this was true, surely people in wheelchairs would also be grossly overweight and I asked if anyone had carried out a study on this. Likewise blind people or the deaf by their sensory deprivation, may be able to add a viewpoint to other scientific or medical conundrums. Again, I remember someone who had their physical sight restored, who had been blind from birth, yet they still couldn't make any sense of the world as a three dimensional entity, which was contrary to expectation.