Chemical reactions

Cannabis

Cannabis

Smoking weed can make everything seem like it's in slow motion as well as making you feel really chilled. How does it do this?

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Cocaine

Cocaine

Cocaine messes with the part of the brain that controls your heart. It can make you feel confident but it also over-stimulates the brain.

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Ecstasy

Ecstasy

Take ecstasy and you may have feelings of intense pleasure and happiness, but a bad pill can cause you to overheat and collapse.

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LSD

LSD

Why do some people freak out of LSD while others have an amazing trip? It’s all to do with how LSD plays with your mind.

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Heroin

Heroin

Heroin works like the natural chemicals in your body to make you feel relaxed, powerful and high. But there are dangerous downsides.

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