How Does The Brain Affect Human Behavior

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How the Brain Effects Human Behavior By Christina Daly Psychology April 2, 2012 The human brain is the most complex organ in the body. It is the center of all human activity; driving a car, enjoying a meal, breathing, creating an artistic masterpiece, and just enjoying your everyday activities. The brain is made up of many parts that all work together as a team. Different parts of the brain are responsible for coordinating and performing specific functions. Drugs can alter important brain areas that are necessary for life-sustaining functions and can drive the compulsive drug abuse that marks addiction. (Mitterer 66). Brain areas affected by drug use include the brain stem; it controls basic functions critical to living, such…show more content…
Networks of neurons pass messages back and forth to different structures within the brain, the spinal column, and peripheral nervous system. Drugs are chemicals that work in the brain by tapping into the communications system and interfering with the way nerve cells normally send, receive, and process information. Nearly all addictive drugs stimulate the brains reward circuitry, producing felling of pleasure (Kalat, 2009). Some drugs, such as marijuana and heroin can activate neurons because their chemical structure mimics that of a natural neurotransmitter. This similarity in structure “fools” receptors and allows the drugs to lock onto and activate the nerve cells. The research of the benefits of medical marijuana has verified its efficiency when applied to a variety of medical conditions. The medicinal use marijuana is well known to be of benefit in the treatment of nausea and other side effects of chemotherapy. It also helps improve the diminished appetite that patients undergoing cancer treatment experience. It lowers intraocular pressure in glaucoma patients, decrease spasticity and other neurologic symptoms in multiple sclerosis, and there is evidence that it is useful in a variety of additional medical…show more content…
Understandably, those who wish to promote the benefits of marijuana can sometimes downplay the negatives. Although no one has ever died from a marijuana overdose and its overall track record is safe, there are some hazards that are largely a function of context. Used in excess, marijuana has a clear tendency to diminish motivation, blunt ambition and generally stunt normal emotional growth. It can also cause confusion and disorganized thought patterns. It has been studied that marijuana is addictive, a “gateway drug”; leads to harder drug use, interferes with fertility, impairs driving ability, and injures the lungs, immune system, and brain (medicalmarijuana.procon.org). Marijuana is well known to be able to induce anxiety disorders, including panic attacks. More rarely, when used by the wrong individuals, it may serve as a trigger for psychotic states, including

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