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Showing posts with the label Substance Abuse

How does substance abuse affect the cardiovascular system?

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  Most illicit drugs can cause cardiac problems, ranging from heart palpitations to heart attacks. Injecting illegal narcotics can also cause cardiovascular issues including blocked veins and bacterial infections in the blood arteries and heart valves. Cocaine, heroin, and other forms of amphetamine can influence the central nervous system and can change a user's consciousness. The following are some of the adverse effects and hazards connected with the use of these medicines, in addition to addiction: ·          Temperature, heart rate, and blood pressure fluctuations ·          Headaches, nausea, and stomach discomfort ·          Poor judgement and a higher chance of contracting some sexually transmitted illnesses ·          The presence of contaminants (such as talc, toxins, herbicides, or other particles) that ...

How does addiction start in the brain?

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      When a person develops an addiction, the brain desires the substance's reward. This is due to the brain's rating system being easily distracted. As a result, many users continue to consume the chemical, which can result in a variety of euphoric experiences and strange behaviour tendencies. Addictions primarily affected by changes in the brain's mesolimbic dopamine system, commonly known as the reward circuit, which originates above the brain stem in the ventral tegmental area (VTA). Dopamine neurons have cell bodies in the VTA and axons that reach to the nucleus accumbens. Though addiction can reveal itself in a variety of ways, including hormonal changes and behaviours, neuroimaging and scanning can also reveal symptoms of addiction in the brain. Researchers investigating at how addiction influences the brain have discovered distinct markers of addiction in the chemistry and structure of the brain. When the impulse using a substance hijacks area of the brain ...