Coma ... A coma is a deep state of prolonged unconsciousness in which a person cannot be awakened, fails to respond normally to painful stimuli, light, or sound, lacks a normal sleep-wake cycle and does …

Aug 25, 2025 · A coma is a deep unconscious state where you can’t wake up or respond, even to pain or loud sounds. Head injuries, strokes, infections or overdoses, among other things, can cause it.

Nov 26, 2024 · Coma is a state of prolonged loss of consciousness. It can have a variety of causes, including traumatic head injury, stroke, brain tumor, or drug or alcohol intoxication.

Jan 10, 2024 · 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...

Coma is defined as a state of deep unconsciousness, an eyes-closed unresponsive state. Coma is usually a transitory state though it may last for an indefinite or even prolonged period. Alerting and …

Nov 30, 2025 · Summary A coma is a deep state of unconsciousness. An individual in a coma is alive but unable to move or respond to his or her environment. Coma may occur as a complication of an …

Learn about coma states, including how long they can last, the risks of brain damage, and the process of waking up. Understand the factors affecting recovery.

The Glasgow Coma Scale (GCS) estimates impaired consciousness and coma severity based on response to defined stimuli including Eye, Verbal, and Motor criteria.

Apr 24, 2023 · A coma is a deep state of unconsciousness that can result from an injury or illness. In some cases, it lasts for just a few days, but in others, the person does not wake up.

Coma is unresponsiveness from which the patient cannot be aroused and in which the patient's eyes remain closed. Impaired consciousness refers to similar, less severe disturbances of consciousness; …