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.
During the 1998-99 summer season, over 10000 tourists visited Antarctica compared with less than 2000 19 years ago. Tours are organised by private companies and people from all over the world make the journey to see the icy continent.t is a magnificent and largely uninhabited wilderness with majestic mountains, glaciers, icebergs and abundant wildlife. Its remoteness, inaccessibility and severe climate add an element of adventure to a visit to Antarctica. Tourists enjoy lunch on stern deck of cruise vessel, Antarctic Peninsula.