Sunday, December 10, 2023

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5 ways Drug Addiction Affects the Brain

The human brain is the most complex organ that is present in the body. In the three-pound mass of gray and white, it sits at the center of human activity and you need it for driving a car. The brain regulates the body’s basic functions, enables for to interpret and then respond to everything that one experiences and shapes the behavior. In the newport beach rehab people will find a good way to get recovery. 

How does the brain work?

The brain comes with billions of cells, that is called neurons. Each neuron acts as a switch controlling the flow of complete information. If a neuron receives meassge from the neurons that is connected to, it sends to own signals to the other neurons in the circuits. 

  • The brain is made up of billions of neurons, which are nerve cells that communicate through electrical and chemical signals.
  • Neurons pass signals to each other across synapses, tiny gaps between neurons. This allows them to form circuits and pathways.
  • The brain takes in information from the five senses – sight, hearing, taste, smell, touch. This sensory information gets processed in different parts of the brain.
  • The cerebral cortex handles higher functions like thinking, learning, reasoning, and language.
  • The cerebellum coordinates movement and balance.
  • The limbic system regulates emotion, behavior, motivation.
  • The brain stem controls automatic functions like breathing, heart rate, swallowing.
  • Chemical messengers called neurotransmitters allow neurons to communicate. Dopamine, serotonin, oxytocin, endorphin are examples.
  • The brain is always active, even during sleep. It operates on both conscious and unconscious levels.
  • Neurons connect in circuits and pathways that process memories, thoughts, sensations. This shapes personality, intelligence, consciousness.
  • The brain is highly adaptable and has the ability to reorganize pathways based on new information and experiences.
  • Overall, the complex neural networks in the brain work together to control behavior, emotion, thoughts, and the body.

The brain is made of many parts interconnected with the circuits that will work together as a team. Different brain circuits are responsible for the coordination and the performing of specific functions. The network of neurons and then it sends signals back to each other and then among different parts of the brain, the spinal cord, and the nerves in the rest of the body. 

People can understand the effects of newport beach rehab.

How do drugs work in the brain?

Reward PathwayDrugs overactivate the brain’s reward systemFeelings of euphoria, cravings, addiction
LearningDrugs reinforce addictive behaviorsIncreased substance abuse, difficulty stopping
InhibitionDrugs reduce impulse controlRisky behaviors, poor decisions
StressDrugs increase dopamine, reduce stress hormonesDependence on the drug to cope
Brain StructureDrugs alter communication pathwaysReduced cognitive skills, mood disorders

Drugs interfere with the way the neurons sends, receives and process signals that come with neurotransmitter. Drugs, like marijuana and heroin, can activate neurons because the chemical structure mimics the natural neurotransmitter in the body. It allows the drug to attach to and activate with neurons. These drugs mimic the brain’s chemicals that will not activate neurons in the same way that is a natural neurotransmitter. It will lead for having abnormal messages being sent through the network. The drugs, like amphetamine or cocaine, will cause for having neurons to release abnormally large amounts of the natural neurotransmitters or prevent the normal recycling of the brain chemicals by interfering with transporters. It amplifies or disrupts the normal communication between the neurons.


Which part of the brain is affected by drug use?

Drug use alters important brain areas that are completely necessary for life-sustaining functions and it will drive the compulsive drug use for mark addictions. The ganglia present in the brain, that play an important role in the positive forms of motivation. It includes the pleasurable effects of healthy activities like eating, socializing, and sex. It involves the formation of habits and routines. The area that is a key node for what is sometimes that is the brain reward circuit. Drugs over-activate the circuit producing the euphoria of a drug high. But with repeated exposure, the circuit that will adapt to the presence of drugs will let the drugs. 

The prefrontal cortex, it powers the ability to think, plan, solve problems, and make decisions, and it is having self-control over impulses. It will help to last part of the brain to mature, making teens vulnerable. Shifting balance between the circuit and circuits for the basal ganglia and extended for the person with substance use disorder seek the drug compulsively with reduced impulse control. 

How do drugs pleasure in mind?

Pleasure or euphoria the high from drugs that are still not fully understood comes with surges of chemical signaling compounds includes with body natural opiods. When some drugs are taken it causes surges of the neurotransmitter with greater than the smaller bursts naturally produced in the associated with healthy rewards in the eating, hearing or playing music or social interactions. 

It was thought that the surges in the neurotransmitter dopamine produced by drugs were directly caused by euphoria. Scientists think dopamine has more to get with us to repeat pleasurable activities than producing pleasure in the body directly.


  1. Brain Function and Neurons:
    • Bear, M. F., Connors, B. W., & Paradiso, M. A. (2020). Neuroscience: Exploring the Brain (5th ed.). Wolters Kluwer. This textbook provides comprehensive information on how the brain and neurons function.
    • Purves, D., Augustine, G. J., Fitzpatrick, D., et al. (Eds.). (2018). Neuroscience (6th ed.). Sinauer Associates. A detailed and highly regarded textbook on neuroscience.
  2. Drug Effects on the Brain:
    • Volkow, N. D., Koob, G. F., & McLellan, A. T. (2016). Neurobiologic Advances from the Brain Disease Model of Addiction. The New England Journal of Medicine, 374(4), 363–371. This article explores how drugs affect the brain and contribute to addiction.
    • Lüscher, C., & Malenka, R. C. (2011). Drug-Evoked Synaptic Plasticity in Addiction: From Molecular Changes to Circuit Remodeling. Neuron, 69(4), 650–663. This study discusses how drugs can lead to changes in synaptic plasticity, affecting addiction.
  3. Brain Reward System and Addiction:
    • Koob, G. F., & Volkow, N. D. (2010). Neurocircuitry of Addiction. Neuropsychopharmacology, 35(1), 217–238. This paper reviews the neurocircuitry involved in addiction, particularly the reward system.
    • Nestler, E. J. (2005). Is there a common molecular pathway for addiction? Nature Neuroscience, 8(11), 1445–1449. This article examines the molecular pathways that might underlie addiction.

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