Glycogen storage disease is any one of several metabolic disorders[?] that result from enzyme defects that affect the processing of glycogen within muscles and other cell types.
There are eight diseases that are commonly considered to be glycogen storage diseases:
... 6.3% from 18 to 24, 31.0% from 25 to 44, 26.9% from 45 to 64, and 13.5% who are 65 years of age or older. The median age is 40 years. For every 100 females there are ...