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Psychoactive Drugs Chapter 2 Analysis

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Chapter two discusses how psychoactive drugs influence our behavior by it reaching the central nervous system first, the most common routes being inhalation, oral administration and injection. I found it interesting that heroin can cross the blood-brain barrier a 100 times more than morphine because it is more liquid soluble. Having stress when taking any of the psychoactive drugs only increases the effects it will have on the brain. Chemicals that normally could not go through the blood-brain barrier will now have access under stress. Combining stress with the use of psychoactive drugs can lead to more serious risk such as drug toxicity and even overdose. Another issue that I found fascinating in chapter two were the drug stimulants being

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