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Drugs' neurological effects on the brain

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What are the specific neurological effects that drugs have on the brain? How is the brain affected physiologically by the presence of drugs?

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https://brainmass.com/psychology/psychopharmacological-substances/drugs-neurological-effects-on-the-brain-346066

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I just responded this to a similar question about how drugs affect the brain:

Drugs ABSOLUTELY affect behavior. They are chemicals. They work in the brain by tapping into the brain's communication system and interfering with the way nerve cells normally send, receive, and process information. Some drugs, such as marijuana and heroin, can activate neurons because their chemical structure mimics that of a natural neurotransmitter such as GABA or Acetylcholine. This similarity in structure "fools" receptors and allows the drugs to lock onto and activate the nerve cells. Although these drugs mimic brain chemicals, they don't activate nerve cells in the same way as a natural neurotransmitter, and they lead to abnormal messages ...

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specific neurological effects that drugs have on the brain

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Examine the neurological effects, structural and functional, of drug use.

Examine the neurological effects, structural and functional, of drug use.

All drugs do something in the brain to create their euphoric results although several of them also have harsh harmful penalties in the brain including seizures, stroke, and widespread brain injury that can affect all features of everyday life. Drugs can also result in brain alterations that result in issues with memory, attention and decision-making. Substance abuse is connected with an assortment of neurological problems. The utilization of particular substances demonstrates a marked temporal relationship with the beginning of both haemorrhagic and ischaemic strokes. Acute, severe elevations of blood pressure, cardiac dysrhythmias, cerebral vasospasm, vasculitis, and embolization have also been seen. Burst of aneurysms and arteriovenous malformations have been noticed in about 50 percent of the patients with haemorrhagic stroke.

In the above infornation it covers (Examine the neurological effects, structural and functional, of drug use;)

However I need about 200 more words covering The structural (explain in detail) and Functional process of drug use.

Please provide reference.

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