Páginas: 3 (573 palabras) Publicado: 20 de febrero de 2012
Addiction has been defined as physical and psychological dependence on psychoactive substances (for xample alcohol, tobacco, heroin and other drugs) which cross the blood-brain barrier onceingested, 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 associatedwith 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 andmany laypeople now mean 'addiction' to include abnormal psychological dependency on such things as gambling, food, sex, pornography, computers, internet, work, exercise, idolizing, watching TV orcertain types of non-pornographic videos, spiritual obsession, self-injury and shopping.
The American Society of Addiction Medicine begins their definition of addiction by describing it as "a primary,chronic disease of brain reward, motivation, memory and related circuitry.
Drug Addiction: Drug addiction such as alcohol, heroin, meth, marijuana, prescription drugs or any other substance or addictiveitem means that the individual is physically, mentally, or both physically and mentally dependent on the item. They will get withdrawal and/or tolerance symptoms when they don't use the substance.Tolerance means that one needs higher quantities of a substance over time to reach the desired effects.
Another part of addiction is withdrawal symptoms. They are unpleasant physical reactions thatoccur when the use of the substances is decreased or discontinued. These symptoms range from nausea, muscle aches and fever to concentration problems, insomnia, anxiety and unpleasant dreams.
Someconditions for drug addiction:
• Continue to use even if you know it is damaging for you.
• Damaging effects due to the use on the addicts themselves and people in their environment
• Failed attempts...
Leer documento completo

Regístrate para leer el documento completo.

Conviértase en miembro formal de Buenas Tareas