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hlth140 lecture 2

hlth140 lecture 2 - Addiction: .10 2011 Keycharacteristics...

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Mental Health Continued… hlth 140                    Feb. 10,  2011 Addiction:  Dependence in a substance or a behavior Key characteristics: Continued, compulsive use of substance use or behavior despite  negative consequences Physiological dependence characterized by: Tolerance – higher doses of the substance are required to achieve  intoxication Withdrawal – syndrome experienced in response to a drop in  concentration of a substance within the body Development of an Addiction: Often starts to bring pleasure or to avoid pain Problems develop when person becomes increasingly dependent on  the behavior A tolerance develops… the person needs more and more to feel the  same effect Eventually the behavior becomes a central focus, and other aspects of  the individual’s life deteriorate At this point, the behavior no long brings pleasure, but one must  depend on it in order to avoid the pain of going without it. Examples of Addictive behaviors: Gambling, compulsive exercise, work addiction, sex addiction,  compulsive shopping, internet addiction Schizophrenia: Relatively common disorder: Cause in uncertain – Possible chemical and structural differences in the brain
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Several genes appear to increase risk Characteristics include:
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