The Human Brain Mind and Drug Addiction by Dr. Frank S. K. Barar SignUp
Boloji.com
Boloji
Home Kabir Poetry Blogs BoloKids Writers Contribute Search Contact Site Map Advertise RSS Login Register
Boloji
Channels

In Focus

Analysis
Cartoons
Education
Environment
Going Inner
Opinion
Photo Essays

Columns

A Bystander's Diary
Business
My Word
PlainSpeak
Random Thoughts

Our Heritage

Architecture
Astrology
Ayurveda
Buddhism
Cinema
Culture
Dances
Festivals
Hinduism
History
People
Places
Sikhism
Spirituality
Vastu
Vithika

Society & Lifestyle

Family Matters
Health
Parenting
Perspective
Recipes
Society
Teens
Women

Creative Writings

Book Reviews
Ghalib's Corner
Humor
Individuality
Literary Shelf
Love Letters
Memoirs
Musings
Quotes
Ramblings
Stories
Travelogues
Workshop

Computing

CC++
Computing Articles
Flash
Internet Security
Java
Linux
Networking
Health Share This Page
The Human Brain
Mind and Drug Addiction
by Dr. Frank S. K. Barar Bookmark and Share
 

The nervous system is the most complex and highly organized of all biological systems. It is fascinating as to how the billions of nerve cells (neurons) work together to control various functions of organs and systems in the body. Precisely, it is the nervous system which enables the organism to adapt to a constantly changing external environment. This phenomenon is termed as homeostasis.

The complete working unit involved in homeostasis consists of the central nervous system (CNS) and the peripheral nervous system including  the autonomic nervous system (ANS).

The cerebral cortex contains about 9 million nerve cells, and is responsible for consciousness and co-ordination of external and internal stimuli. The highly organized cerebrum delineates humans from all other living organisms. Removal of the entire cerebrum in the frog produces no behavioral changes. Whereas, the human being becomes totally blind, extensively paralyzed, and soon dies. Concerning human behavior, the most important regions of the brain involved are the limbic system and the reticular formation. The limbic system controls emotions involving both mental and physical elements. The memory process, learning, and motivational aspects of behavior are all governed by the limbic system. The reticular formation is the "bridge" portion of the CNS which controls the inflow and out flow of impulses, and is responsible for alertness, arousal, sleep and attention, maintaining a state of consciousness in man. The activity and function of the nervous system can be modified by a  wide range of chemicals or drugs having either a direct effect on nerve cells, or by producing changes in the levels of chemical transmitters (neurotransmitters) in the system.

In ancient times agents given to patients with mental disorders were limited to herbal potions that consisted mostly of inactive ingredients. Major advances were made in the early 1950s with the introduction of reserpine and chlorpromazine. These two compounds provided a chemical basis for the treatment of psychosis, a major mental disorder. Later, a number of drugs followed which altered behavior, and today the most effective tool available to control mental disorders is appropriate drug therapy. This has reduced the period of hospitalization for the mentally ill.

Drugs which modify behavior are termed as psychopharmacological agents and include: (a) antipsychotics; (b) antidepressants; (c) antimanics; and (d) anti-anxiety agents. Lastly the psychotomimetics or hallucinogens, which have no medical uses, but are dangerous drugs of abuse.

Schizophrenia is a major mental disorder, which ruins the most useful years of one's life. "Cures" are rare. The antipsychotics have a profound effect on the ANS, hypothalamus, and the reticular formation. These drugs have a wide margin of safety, but adverse reactions include lethargy, involuntary muscle movements, endocrinal disorders, and depression of the bone marrow.

The antidepressants (psychic energizers) have been an outstanding success in modern psychopharmacology. They are used to treat depression, which is an affective disorder afflicting many individuals. Depression is the most frequently unrecognized emotional disorder, which can be effectively controlled by appropriate therapy.

The anti anxiety agents, which include the benzodizepines, are used to treat anxiety neuroses by producing calmness and muscle relaxation. In addition they produce euphoria, i.e., a false feeling of well being. These drugs produce tolerance, psychological and physical dependence. Thus, they are dangerous addictive drugs, very likely to be misused, particularly by the youth, more so in this modern competitive and stressful world, with a hectic lifestyle.

Many drugs today are taken by man for the pleasant effects they produce.

Such drug use leads to serious socioeconomic problems like drug abuse or drug dependence. The long list includes alcohol, tobacco, morphine, opium, codeine, heroin, brown sugar, smack, barbiturates, methaqualone, diazepam, alprazolam, amphetamine, cocaine, and hallucinogens like LSD, mescaline and cannabis.

Classically drug addiction (dependence) is characterized by: (i) an overpowering desire to continue taking the drug, and to obtain it by any means, i.e., habituation; (ii) a tendency to increase the amount taken, i.e., tolerance; and (iii) a psychic, and at times physical dependence on the effects of the drug. In physical dependence there is a biochemical and physiological adaptation of the tissues to the new chemical environment following the repeated use of the drug. Thus, upon withdrawal of the drug a serious abnormal cellular  response is produced known as the withdrawal syndrome, which is different for each drug, and may be life threatening.

Let us consider how drug abuse begins?

Usually a person tries a drug, likes what happens, and continues to use it a few more times, and ultimately becomes addicted to it. Later, their continuous use produces harmful effects, a.go., alcoholism produces progressive deterioration of physical and mental health, internal bleeding, liver and brain damage and psychosis.

Alcohol contaminated with methyl alcohol causes blindness; LSD can lead to psychosis, and dreadful thought disorders; Cannabis alters the thought process, and can lead to birth defects when consumed by pregnant women; Chronic use of tobacco is linked to coronary heart disease and lung cancer; and so on. De-addiction of the patient is difficult, and needs hospitalization, psychotherapy, supportive treatment, and rehabilitation. All these measures are time consuming, tedious, and expensive to afford.

In conclusion, today many potent and effective drugs are available, and can be effectively employed in the treatment of the mentally ill. But some of them may be misused by man to enjoy the pleasant effects they produce, leading to drug addiction. Control of addiction warrants serious attention of the medical profession, social welfare organizations, and the government which must clamp a stricter drug control in the country.  

13-Mar-2005
More by :  Dr. Frank S. K. Barar
 
Views: 4679
Article Comment Very nice site!
Very nice site!
03/13/2011
Article Comment Very nice site!
Very nice site!
03/05/2011
Article Comment Very nice site!
Very nice site!
01/28/2011
 
Top | Health







    A Bystander's Diary     Analysis     Architecture     Astrology     Ayurveda     Book Reviews
    Buddhism     Business     Cartoons     CC++     Cinema     Computing Articles
    Culture     Dances     Education     Environment     Family Matters     Festivals
    Flash     Ghalib's Corner     Going Inner     Health     Hinduism     History
    Humor     Individuality     Internet Security     Java     Linux     Literary Shelf
    Love Letters     Memoirs     Musings     My Word     Networking     Opinion
    Parenting     People     Perspective     Photo Essays     Places     PlainSpeak
    Quotes     Ramblings     Random Thoughts     Recipes     Sikhism     Society
    Spirituality     Stories     Teens     Travelogues     Vastu     Vithika
    Women     Workshop
RSS Feed RSS Feed Home | Privacy Policy | Disclaimer | Site Map
No part of this Internet site may be reproduced without prior written permission of the copyright holder.
Developed and Programmed by ekant solutions