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How Do Drugs Affect The Brain

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My presentation today is to talk about the effects of the drugs on the brain.

Drugs affects a person's brain by changing or interfere with the activity of neurotransmitters and receptors in the brain.
Neurotransmitters are the brain chemicals that share information throughout our brain and body. They send signals between nerve cells, called “neurons.” The brain uses neurotransmitters to tell your heart to beat, your lungs to breathe, and your stomach to digest. They can also affect your mood, how you sleep, your ability to concentrate, your weight, and can cause negative symptoms when they are out of balance.

There are two kinds of neurotransmitters – Inhibitory and Excitatory. Excitatory neurotransmitters are what stimulate the brain. Inhibitory calm the brain and help balance mood. …show more content…
Depressant Drugs: Alcohol, Benzodiazepines, Barbiturates and other central nervous system depressant drugs act on a neurotransmitter substance known as GABA (Gamma Aminobutyric Acid). GABA is an inhibitory neurotransmitter that makes other neurons less likely to work making it harder for your nervous system to get excited.

Stimulant Drugs: Amphetamines affects the neurotransmitter Dopamine. Amphetamines both cause Dopamine-producing neurons to let more Dopamine out than normal, and keep that Dopamine in the brain longer than it normally would.

Cocaine blocks the re-uptake of the neurotransmitters Dopamine and Serotonin.

Cannabinoids: Marijuana has complicated effects. It acts on the neurotransmitters Serotonin, Dopamine and

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