the.com/unconsciousness
The brain's way of saying it's closed for maintenance, no refunds, no complaints.
means The state of being unaware and unresponsive to your surroundings, whether from sleep, injury, anesthesia, or a knockout blow.
from Built from the Latin prefix 'un-' (not) plus 'conscious,' itself from Latin 'conscius' — 'con-' (together, with) plus 'scire' (to know). So 'conscious' literally meant knowing something with yourself, being privy to your own mind; 'unconsciousness' is simply that self-knowing switched off. The word entered English in the 1700s as philosophers and physicians needed a plain term for the mind's blackout state, long before Freud repurposed 'the unconscious' to mean something stranger — a mind still running, just out of view.
- not sleep
- lacks normal brain-wave cycling sleep requires
- anesthesia depth
- too little and patients feel surgery happen
- fainting cause
- blood pressure drop starves brain of oxygen briefly
- coma spectrum
- ranges from minutes to permanent, unpredictably