Asphyxia is a condition of severe lack of oxygen supplied to the body. In the absence of remedial action it will very rapidly lead to unconsciousness and death. Asphyxia is the same as suffocation and anoxia.
Asphyxia is a medical emergency.
Causes of asphyxia can include:
Prolonged asphyxia can result in brain damage even when it does not cause death.
See also: hypoxia