Researchers tracked 120 soldiers of the U.S. army during one year of training and found out that those soldiers who could do more situps during the standard fitness test were 5 times less likely to suffer from lower-body injuries.
Today, a six-pack in a movie can hardly surprise anyone, however, the first Hollywood ab shot caused a real stir. Clark Gable bared his tummy in 1934, in the It Happened One Night movie.
