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  • Publicado : 12 de marzo de 2010
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= CAUSES OF DRUG ADDICTION=
The communication between neurons is key to understand how we react to a drug.
The nervous system has two different types of cells, first the neurons, whichcommunicate with other cells and are designed to analyze and transmit information, so everything we experience and understand as behavior is result of the neurons` function. The other cells are the glialwhich help to provide fitness and structure to the brain, distribute nutrients to the system and they eliminate waste, as well as the form the blood-brain barrier which separate harmful toxins fr5ombeneficial chemicals.
The blood-brain barrier allows the drugs to filter through and the neurons gather and transmit the information. The blood stream carries toxic chemicals such as the drugs, and theygo everywhere the brain; each drug has different effects on the brain.
Another cause of addiction it`s that they impact serotonin, which regulate our weight, so low levels of serotonin causesaggressiveness, and the most important thing is that people could be killed theirself.
= SIGNS AND SYMPTOMS IN THE ADDICITON TO THE DRUGS== EFFECTS OF DRUG ADDICTION=
When someone takes drugs it is difficult to them to control to drugs. Usually the drugs make you feel good gut also depress and anxious, itincrease the craving for take more drugs. Some people who are drug addiction can do everything to take drugs, such as steal things, go into prostitution and even sell their homes.
EFFECTS OFADDICTION ON PEOPLE`S HEALTH
Drug addiction affects the way the brain functions and alters its responses to the world, it`s unpredictable how drug abuse will effect your behavior, actions, feelings andmotivations.
The effect of drug addiction on a person`s life are a lot; they depend on the drug and the amount, method and frequency of use. The drugs may change brain chemistry, which results in a...
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