What happens to your brain if you keep taking drugs?

Just as we turn down the volume on a radio that is too loud, the brain adjusts to the overwhelming surges in dopamine (and other neurotransmitters) by producing less dopamine or by reducing the number of receptors that can receive signals. As a result, dopamin...

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How does the brain communicate?

The brain is a communications centre consisting of billions of neurons, or nerve cells. Networks of neurons pass messages back and forth to different structures within the brain, the spinal column, and the peripheral nervous system. These nerve networks coordi...

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Introducing the Human Brain

The human brain is the most complex organ in the body. This three-pound mass of gray and white matter sits at the centre of all human activity – you need it to drive a car, to enjoy a meal, to breathe, to create an artistic masterpiece, and to enjoy ever...

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Drugs, Brains, and Behaviour: The Science of Addiction

As a result of scientific research, we know that addiction is a disease that affects both brain and behaviour. Drugs are chemicals. They work in the brain by tapping into the brain’s  communication system and interfering with the way nerve cells normall...

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