Unconsciousness literally means not awake or not aware of the surronding environment. The unconsciousness state may be prolonged or brief. The prolonged period of unconsciousness is called coma. Coma is a state of deep prolonged sleep.
The levels of unconsciousness can be measured clinically on a scale called the Glasgow Coma Scale and this gives the depth of coma.

Answered by MRIDUL BORA , an ibibo Master, at 12:04 AM on April 26, 2008

Unconsciousness, more appropriately referred to as loss of consciousness or lack of consciousness, is a dramatic alteration of mental state that involves complete or near-complete lack of responsiveness to people and other environmental stimuli.

Coma, from the Greek word "koma," meaning deep sleep, is a state of extreme unresponsiveness, in which an individual exhibits no voluntary movement or behavior. Furthermore, in a deep coma, even painful stimuli (actions which, when performed on a healthy individual, result in reactions) are unable to affect any response.

Answered by deepa iyer , an ibibo Advisor, at 7:18 PM on April 16, 2008

AN UNCOUNCIOUS PERSON IS USUALLY UNRESPONSIVE TO THEIR ENVIROMENT OR PEOPLE AROUND THEM.UNCOUNCIOUSNESS CAN BE A RESULT OF BRAIN INJURY,LACK OF OXYGEN ,OR POISONING OR NUMEROUS OTHER CONDITIONS.COMA IS A DEEP UNCOUNCIOS STATE ,USUALLY LASTING A LONG TIME AND CAUSED BY SERIOUS ILLNESS OR INJURY OR BRAIN INFECTION OR STROKE .A PERSON IN COMA NEEDS TO BE CARED FOR IN INTENSIVE CARE UNIT IN HOSPITAL.

Answered by sanya , an ibibo Master, at 12:54 PM on April 15, 2008

You awake and sleeping !

Answered by AJIT NAIR , an ibibo Citizen, at 12:53 AM on April 14, 2008

unconsciousness is a temporary phenomenon. if it persists continuously it is termed coma. This is calculated according to Glasgow Coma scale by doctors. Please feel free to talk to me on 9820416386-Dr.Aniruddha or visit my clinic website at http://jayshreeclinics.googlepages. com

Answered by Dr.Aniruddha , an ibibo Advisor, at 6:54 PM on April 13, 2008

tingtong unconsciouness takes a little time for the person to recover and retain orginal physical activity, while coma makes a person to lie unconsciounsness for months to years also, once a person goes to coma , no one can perdict when the person can become active again .

Answered by sanjay , an ibibo Guru, at 11:16 AM on April 12, 2008

practically both are the same conditins in coma patient has lost consiusness but his vital functions are working like breathing and heartbeat and respirarion same is in unconcuosness

Answered by rajesh goyl , an ibibo Advisor, at 2:21 PM on April 11, 2008

When a person is unconscious, you can get him/her back to consciousness by splashing water on the face but when a person goes into coma, this cannot be done as it is the brain that is not functioning properly

Answered by Vidya Anand , an ibibo Advisor, at 2:11 PM on April 11, 2008