At a critical juncture during brain surgery, Alex Dixon, age 12, had a stroke . . . Alex was a normal, bright, and healthy little girl, when the sudden onset of a mysterious illness began to take over her life. Months of physical therapy and medication failed to provide relief from acute pain and muscle spasms. Doctors across the country were at a loss for answers. A last ditch attempt at treatment—brain surgery—ended up stopping the spasms but with unexpected consequences.