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Drugs

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Colegio Americano Del Noreste
Drugs

Miss: Nancy
Mario Fabrizio Curzio Aguirre
Grade: 9°
Group: “A”

December 3, 2013

How do the drugs affect the brain?
When drugs get into the bloodstream they are carried to all parts of the body and some reach the brain. The quicker the drug reaches the brain, the more intense the effects. The quickest way to get a drug into the brain - and also the most dangerous way of using any drug - is to inject it intravenously, or into the vein. Almost as quick is smoking a drug. followed by sniffing or snorting and then by mouth. Eating or drinking a drug is the slowest route, because the drug has to pass through the stomach first.

Once in the brain drugs affect chemicals called neurotransmitters. These are the chemicals that control the flow of information within the brain between the neurons or brain cells, forming a synapse. Neurotransmitters also alter people's moods and feelings. Different drugs can affect different neurotransmitters.

How do the drugs affect the heart?
Once drugs are taken and enter the bloodstream the heart pumps blood containing the drug to the brain where it will affect how people feel.
Drugs can also have an affect on the heart directly and exacerbate heart disease. Heavy drinking of alcohol, for example, can weaken the heart's ability to pump blood and lead to heart failure although some studies have suggested that moderate consumption may be better for the heart than not drinking alcohol at all.
Taking regular and high doses of stimulant drugs like amphetamine, cocaine/ crack, ecstasy, anabolic steroids and even possibly caffeine may increase the risk of heart attacks, especially for people who already have heart problems or high blood pressure.
How do the drugs affect the lungs?
Because the lungs provide the oxygen directly and very effectively to the body, anything that is inhaled

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