The answer is Dregg did delightfully on his Antarctic test because ... he knew it cold! This puzzle is a play on words; when somebody is fully set for every answer on a test, they can be said to "know it cold." At the same time the Antarctic is recognized for being, in fact, very cold. So in this joke Dregg knew all the answers about the cold weather of the Antarctic.
A researcher that finds considering a drug as an interruption or disorder of physiological functions as most useful for understanding drug addiction likely would prefer the disease model of drug addiction.
Addiction is a chronic dysfunction of brain systems involved in reward, motivation, and memory. It's about how your body craves substances and actions. When you become addicted, your brain's receptors are overwhelmed. The brain responds by either reducing dopamine production or eliminating dopamine receptors.
These changes affect a person's behavior, causing them to lose control over substance use and behavior. Addiction is not technically considered a mental illness, but it is a medical disorder that often coexists with mental illness.
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Laws are necessary to keep society together . For example some protect our general safety, and ensure our rights as citizens against abuses by other people,by organizations and by the government itself. An example of one for our general safety are speed limits and traffic laws exist so that we drive in a safe manner.
