Information on Addiction
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Historically, addiction has been defined as physical and psychological dependence on psychoactive substances (for example alcohol, tobacco, heroin and other drugs) which cross the blood-brain barrier once ingested, temporarily altering the chemical milieu of the brain.
Addiction can also be viewed as a continued involvement with a substance or activity despite the negative consequences associated with it. Pleasure and enjoyment would have originally been sought, however over a period of time involvement with the substance or activity is needed to feel normal.
Some psychology professionals and many laymen now mean ‘addiction’ to include abnormal psychological dependency on such things as gambling, food, sex, pornography, computers, internet, work, exercise, idolising, watching TV or certain types of non-pornographic videos, spiritual obsession, cutting and shopping