Melissa Kopolow McCall and Matt McCall never knew the meaning of courage until their daughter Abagail was born. Despite having had 12 brain surgeries before turning five, Abagail brings joy to everyone she meets. Abagail has hydrocephalus, a chronic neurological condition that has no cure and can only be treated with brain surgery. Her condition has meant multiple hospital stays and a host of other health issues. While hydrocephalus affects over 1 million Americans, there is little public knowledge about this brain disorder and not enough research dollars. That’s why the McCall’s will join hundreds of local families and businesses at the Hydrocephalus Association (HA) National Capital WALK to End Hydrocephalus on Saturday, Sept. 15 at the Lincoln Memorial.