effects of drugs
Good morning! To start my presentation, (shut off lights) close your eyes, everyone think of a pleasant experience... walking on the beach, cuddling with a boyfriend or girlfriend, eating chocolate cake... Feel the pleasure?? Biologically, you are secreting dopamine into the amygdala region of your brain. Receptor sites open up to receive the chemical and cause that pleasure part of your brain to fire. Wow, isn't that nice! Most drugs do exactly this, but at much more intensity. They cause huge amounts of dopamine to flood the amygdala region. Today, I am doing my presentation on the effects of drugs on the brain. Even though drugs effect our body in different ways, it most horrifying effects our brain. Drugs of abuse are valuable tools for brain functions because they can mimic or block actions of neurotransmitters, which in return effects our homeostasis and behaviour. If your curious, drugs of abuse range from alcohol, to nicotine, to marijuana, to cocaine, etc. We have a specific region in our brain, called the amygdala region. This region regulates our feeling of pleasure and can be activated by drugs of abuse. Drugs of abuse produce the feeling of pleasure because they alter the neurotransmitter dopamine, a
Some drugs activate receptors, such as the THC, the main psychoactive chemical in marijuana, while others block them, such as cocaine and amphetamines. I will not even go into greater detail, the list goes on. There are a variety of scientifically based approaches to drug addiction treatment that exists. Some users will find that they have sleep disturbances, psychological disturbance, slower reaction, loss of motivation, and an impaired ability to learn. There is decreased sperm count, lowered sex drive, egg damage, irregular menstrual cycle, and impaired fertility. The brain has now become crippled. Behavioural therapies offer people ways for coping with drug cravings, teaching them ways to avoid drugs. It essentially has lost its natural ability for pleasure. When neurons don't function normally, this results in changes of a persons behaviour that are regulated by those neurons. Not only do drugs severely effect the brain, they also effect the body. Drugs mimic the brain's natural chemicals. Long term use changes the way the neurons function. Drugs may alter synaptic transmission by directly affecting the receptors. Synaptic transmission is the process of communication from a neuron to a target (such as a neuron, muscle, or secretory cell) across a synapse.
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