What is consciousness?
The word consciousness in psychological terms refers to the condition of alertness of the organism. The brain is the control centre of the nervous system of the body and plays a major role in mans thinking remembering and alertness. Unconsciousness refers to the state of sleeping. Between these two conditions one may have varying degrees of consciousness.
            In a condition of full consciousness the level of alertness is high. For example if someone is playing chess and wants to win he would try to remain in a state of high alertness and deep concentration. Similarly the circus gymnasts would have to be very alert during their performances.

            If a person is dozing he is said to be in a state of lower level of consciouscious if he falls asleep.

            These are different states of consciousness that we come across in our normal day to day life. However unconsciousness or sub consciousness can also be produced by artificial means. A high state of consciousness’ can be produced with the help of some medicines which act as a stimulant and make a person more active beyond his normal ability. Such medicines affect the central nervous system and produce abnormal conditions. Caffeine in a strong coffee or tea can act a powerful stimulant for some people. Too much alcohol can produce drowsy effect and finally unconsciousness’.

            Certain diseases have a marked impact on the level of consciousness. There are some mental diseases that can lower the consciousness of a person. Emotional disturbances also affect the state of alertness of an individual. Highly emotional people often girt the felling of depression.

            Today scientists have developed several medicines and shock therapies that can contra the level of consciousness. These methods are used for treating people with lower level of consciousness how ever these should be used only when prescribed by a physician.

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