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> they are reused for completely unrelated things, for example lactation and the immune system Can you expand on this a bit more?
by nmfisher 6y ago
> they are reused for completely unrelated things, for example lactation and the immune system
Can you expand on this a bit more?
- GuB-42 6y agoIt is just from the Wikipedia article on dopamine, but it is not uncommon for neurotransmitters to have many unrelated purposes, both in the body and the brain. Serotonin, the other "pleasurable" neurotransmitter does pretty much everything. It makes sense from an evolutionary point of view. It is easier to repurpose a molecule we can already produce than to build an entirely new pathway.