This is:

Strangely enough, this is not always an indicator. We had a grandmother-caregiver on the site with the first group of disabilities just for orthopedic matters. Many caregivers from the second barely crawl around their apartment, and on the street only accompanied, and this periodically met: a truss with a sleeve and itching to the bus stop so that you need to catch up with the run. Once organized the social center "fir-fir-fir!" for the fact that the placed free costume in the TSS gave "black, which does not fit the summer dress and in general some MAN!"

You are not a doctor? Doctors know how to get a disability and define a group.
2 cases - a) a person with multiple sclerosis, who barely walks around the apartment, falls all the time, has 3 group of disabilities; c) a friend of quite decent health, not worse than other retirees, has 2 group of disabilities in the set of diseases, and by a strange coincidence her daughter works with us as an official in medicine.