Brain death is not the same as coma, because someone in a coma is unconscious but still alive. Brain death occurs when a critically ill patient dies sometime after being placed on life support. This situation can occur after, for example, a heart attack or stroke.

Can a person recover from being brain dead?

A person who's brain dead is legally confirmed as dead. They have no chance of recovery because their body is unable to survive without artificial life support.

Do comatose patients have brain activity?

Someone who is in a coma is unconscious and has minimal brain activity. It is not possible to wake a coma patient using physical or auditory stimulation.