“In 1975, a study done by Dr. James A. Nicholas for The Journal of Sports Medicine examined sixty-one different activities.  Ballet was ranked most physically and mentally demanding, followed by bullfighting and then football”

-The New York Times-

Ballet is one of the most time consuming activities or all time.  It takes time, determination, mental and physical strength, and practice.  The technique takes years to master.  Ballet pieces also have a wide variety, from classical to contemporary ballets.  This website will give you a basic idea of ballet technique and some famous performances.