Once she hunted antelope. Now she hunts Boko Haram.
In Afghanistan, this Wushu trainer teaches women martial arts - to compete, and to defend themselves.
Donnie Yen is cool, but his mother is MUCH cooler - she started the first Wushu school in the United States, and is one of the grandmasters of the art form.
When she was a teen, this now-90-year-old woman would seduce and kill Nazis. Now she plays a mean game of Scrabble.
Meenakshi has been practicing kalaripayattu for decades, and now teaches it to a younger generation -- including increasing numbers of girls.
Married off at age thirteen, Neetu has since taken up wrestling, winning a bronze medal in the 2015 National Games of India. She's currently aiming for the 2020 Olympics.
Prior to the "kung fu craze" of the '70s, two women were already spreading tai chi in Europe and America.
Lúcia Teixeira is a visually impaired judoka from Brazil who won second place in the 2012 Summer Paralympics, and will be competing again in the 2016 events.
Practicing martial arts since she was 12, Al Hamrani now runs her own gym, Flagboxing (which is an acronym for Fight Like a Girl Boxing).