Damage to the brain following a traumatic brain injury is permanent because damaged brain cells cannot regenerate or repair themselves.
Why brain damage is permanent?
Whether a person recovers from a brain injury depends on the location and severity of the damage. A concussion, a typically mild and common type of brain injury, usually results in only temporary disruption of brain functions as long as there is adequate recovery time and no repeated injury.
Does having brain surgery shorten your life?
A larger 2004 study of 2,178 patients cited in an Institute of Medicine report last year showed that people with moderate to severe traumatic brain injuries had a reduced Life expectancy by five to nine years.
Can you come back after no brain activity?
No. The brain will never recover when it dies. Since the patient has already been declared dead, removing the machine (which is artificially pumping air into the lungs) cannot cause further harm or death.
Can someone with no brain activity recover?
This means they will not regain consciousness or be able to breathe without support. A person whos brain dead is legally confirmed as dead. They have no chance of recovery because their body is unable to survive without artificial life support.