1 Myotonic (also called MMD or Steinert's disease). 2  The most common form of muscular dystrophy in adults, myotonic muscular dystrophy affects both men and women, and it usually appears any time from early childhood to adulthood. 3  In rare cases, it appears in newborns (congenital MMD).
There are around 66 scientific bases in Antarctica, of which about 37 are occupied year round. There are about 4,000 people through the summer months and about 1,000 overwinter each year.
No one lives in Antarctica on a permanent basis. The Antarctic Treaty guarantees that Antarctica is to be used for peaceful purposes and for scientific research. This means that no one can have Antarctica as their permanent mailing address. Only scientists are allowed to spend any time there.