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Chemistry, not moral failing, accounts for the brain’s unwinding. In the laboratories that study drug addiction, researchers have found that the brain becomes conditioned by the repeated dopamine rush caused by heroin. “The brain is not designed to handle it,” said Dr. Ruben Baler, a scientist with the National Institute on Drug Abuse.
The word addiction is dated to the 17th century. [8] The consumption of addictive substances, such as alcohol, opioids and cocaine, is reportedly traceable to ancient Syria, China and South America. Some of those abusing narcotics were called opium and morphine "eaters", while the term drunkard referred to alcohol abusers.
Substance abuse, also known as drug abuse, is the use of a drug in amounts or by methods that are harmful to the individual or others. It is a form of substance-related disorder . Differing definitions of drug abuse are used in public health , medical, and criminal justice contexts.
Substance dependence, also known as drug dependence, is a biopsychological situation whereby an individual's functionality is dependent on the necessitated re-consumption of a psychoactive substance because of an adaptive state that has developed within the individual from psychoactive substance consumption that results in the experience of withdrawal and that necessitates the re-consumption ...
Drug addiction, which belongs to the class of substance-related disorders, is a chronic and relapsing brain disorder that features drug seeking and drug abuse, despite their harmful effects. [28] This form of addiction changes brain circuitry such that the brain's reward system is compromised, [ 29 ] causing functional consequences for stress ...
"Substance use pertains to using select substances such as alcohol, tobacco, illicit drugs, etc. that can cause dependence or harmful side effects."On the other hand, substance abuse is the use of drugs such as prescriptions, over-the-counter medications, or alcohol for purposes other than what they are intended for or using them in excessive ...
Lauren Nichols, a 34-year-old logistics expert for the U.S. Department of Transportation in Boston, has been suffering from impaired thinking and focus, fatigue, seizures, headache and pain since ...
The term addiction usually correlates with a severe substance use disorder. Addiction is characterized by behavior that is originally voluntary and reward-seeking that over time, becomes compulsive, with a desire to avoid dysphoria or withdrawal rather than to experience the original positive effects associated.