Two-thirds of people who sustain gunshot wounds to the head don't live long enough to make it to the hospital. But there are several factors that helped Rep. Gabrielle Giffords beat those long odds. Christopher Loftus, a neurosurgeon at Temple's School of Medicine, says the quick response of medical professionals helped save her life. Still, Loftus has no doubt she will have some impairments and will need extensive rehabilitation. "It doesn't take much brain injury to take away that little fine edge of executive functioning," he said. Function is assessed by months or even years. We say up to two years they can make some kind of recovery."