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.
Antarctica is located in the Southern Hemisphere (the half of the globe that is south of the equator). The continent overlies the South Pole and covers 13,824,000 square kilometers (5,400,000 square miles). It is the fifth largest landmass on the globe.