Does your "friend" do kegels? If she were to do them faithfully, everyday, she would most likely develop a stronger pelvic floor and not have a problem with, um, leakage........ If the kegel exercises don't help, there are great products called panty liners. Don't know if they'd stay stuck during a run, tho'? Maybe worth a try. Or wear black shorts.
Annie
Time is a companion that goes with us on a journey. It reminds us to cherish each moment, because it will never come again. What we leave behind is not as important as how we have lived." Captain Jean Luc Picard