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Most drugs increase seratonin/dopamine production/stimulation/release in the brain, which is the feel good happy chemical. Over time, those levels get lower, and just to maintain normalcy, a large amount of drug is needed.

Of course, that's not with all drugs!

Modern LSD and Amanita Mushrooms have strictnine, which in the body, causes the back of your brain to bleed, causing visual hallucinations.

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15y ago

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