W. Stiggelbout has written:

'The (Laurence Moon) Bardet Biedl syndrome' -- subject(s): Laurence-Moon-Biedl syndrome

They are partially blind, have extra fingers and/or toes, has obesity, and has trouble with learning.

One becomes morbidly obese by chronically ingesting more than one metabolizes. There are genetic syndromes where one can be morbidly obese. These include Prader Willi syndrome and Bardet Biedl Syndrome, Cohen syndrome, others.

People affected with BBS can easily live up to 50 yrs. According to CIA World Factbook 2010, the life expectancy of BBS sufferers in Lithuania is 70 years for men and 80 years for women.

Polydactyly is a genetic disorder which leads to one having six fingers or toes. This is also known as hexadactyly. It is caused by an autosomal dominant gene.

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Poly = many

dactly = fingers and toes.

Polydactyly means more than the usual number of fingers and/or toes. Some cases can be genetic but most are not and there can be any number (not necessarily 6).