Some 6 people died and 14 were injured in the mass shooting outside a Tucson, Ariz., supermarket in January.

One of the victim of mass shoot, Congresswoman, Gabrielle Giffords has shown the brain’s amazing potential of recovery. She is making a pretty remarkable recovery after a gunshot wound. The phenomenon of restoring some functions in brain after substantial injury is known as plasticity, which is helped by rehabilitation.

Dr. Sanjay Gupta, Neurosurgeon and CNN Chief Medical Correspondent said that only 5% of the people are able for the recovery of the brain. He said that brain is supposed to be immutable and it is difficult to make changes after childhood, in one hour’s documentary, Saving Gabby Giffords, will be shown by Dr. Gupta on May 8 at 7pm ET.

Professor of Neurology and Neurological Surgery at Columbia University, Dr. Stephan Mayer, asserted, “I'm still amazed from time to time at how well people do, and I think that we have simply underestimated the resilience and regenerative capacity in the human brain”.

According to the Centers for Disease Control & Prevention, it was disclosed that about 1.7 million people suffer from traumatic brain injury in the US. Among those 1.7 million people, almost 80% of people get diagnosed.