TIL That serotonin, the neurotransmitter responsible for happiness, can be toxic. When injected into skin it causes extreme pain and is a main ingredient of wasp venom

Read more: https://www.mentalfloss.com/article/68273/serotonin-known-joy-chemical-its-also-found-animal-venom

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  1. Hell yeah it’s dangerous. Even antidepressants, which can be serotonin reuptake (reabsorbing) inhibitors can cause serotonin syndrome. Lots of bad side effects there! Diarrhea all the way to death.

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