Some of the main causes of drug abuse is experimenting with recreational drug which can lead into an addiction. The more and more drugs you take the larger ose you need to get the same high, this can cause you to need or want more drugs and fuel your addiction.
Effects of drug on the body
What drugs can do to the brain
All drugs target the brains reward system that is responsible for instinct and your mood, when drugs enter this system it releases large amounts dopamine and large amounts of dopamine is what gets you the high feeling. like many other drugs cocaine has a large effect on your brain, it is one of the major drugs that effects the dopamine flow in your brain. With large amounts of dopamine flow it blocks the communication between brain cells. Over time, cocaine makes your brain less sensitive to the dopamine effects and therefore you need more drugs to get the same high effect you used to get.
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