![]() ![]() ![]() Crack also causes an increase in norepinephrine, which is an adrenaline-like substance that produces alertness and prepares the body for fight-or-flight style action. This is one of the most prominent reward chemicals in the brain, and it produces the sense of euphoria in the individual, which is usually the sensation that drives people to continue using. ![]() The most commonly impacted chemical messenger is dopamine, and crack use causes a huge increase of dopamine. Changes in the brain Drugs of abuse produce their effects by interfering with or mimicking the brain’s natural neurotransmitters. ![]() Finding out about the effects crack has on the brain and how these manifest themselves in the long term helps to understand the wide-ranging risks people expose themselves to with a crack addiction.
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