become unconscious

The condition can cause people to become unconscious and die.

Lawrence said they spent about 50 minutes in 37-degree water, a situation made even more dangerous by a heart condition that eventually led her to become unconscious after completing the 3/4 mile swim with Aadland’s assistance.

Some scientists have used brain scans to detect signs of consciousness in people diagnosed as being in a vegetative state, for example, while others have used brain waves to determine when people become unconscious under anesthesia.

If that blood flow is cut off in a chokehold or a stranglehold, some people can become unconscious in three to four seconds.

After they realise that he had become unconscious, the officers are seen slapping his face and saying "Edward, wake up".