Reported by: Lili Tan – NBC Bay Area

It’s a medical breakthrough that is even surprising doctors: chronic stroke patients with little hope for recovery suddenly talking and walking again. Stanford researchers say a new stem cell experiment is transforming lives.

“We did not expect to see significant recovery,” said Dr. Gary Steinberg, who is Stanford University School of Medicine’s Chief of Neurosurgery. “We were quite startled by the remarkable recovery some of the patients showed.”

Watch video here: