up their computer and going to their favorite web sites. in other words, some researchers think that there are chemical changes that occur in the body when someone is engaging in an addictive behavior. furthermore, from a biological standpoint, there may be a combination of genes that make a person more susceptible to addictive behaviors, just as researchers have located genes that affect a person's susceptibility to alcohol.

　　in addition to having features of a process addiction, internet use might be reinforced by pleasurable thoughts and feelings that occur while the person is using the internet. although researchers in the field of addiction studies question the concept of an "addictive personality" as such, it is possible that someone who has one addiction may be prone to become addicted to other substances or activities, including internet use. people with such other mental disorders or symptoms as depression, feelings of isolation, stress, or anxiety, may &qu

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