cerebral

What Is a Coma? A coma is a prolonged state of unconsciousness. During a coma, a person is unresponsive to their environment. The person is alive and looks like they are sleeping. However, unlike in a deep sleep, the person cannot be awakened by any stimulation, including pain. A coma is a prolonged state of unconsciousness. It is caused by an injury to the brain that can be due to increased pressure, bleeding, loss of oxygen, or buildup of toxins. The injury can be temporary and reversible but can also be permanent and lead to death. Coma Causes A coma