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The blood brain barrier is a deny by default firewall. If there is no transporter configured for a particular molecule, it doesn't get through. There is no tran
by idiotsecant 8mo ago
The blood brain barrier is a deny by default firewall. If there is no transporter configured for a particular molecule, it doesn't get through. There is no transporter for serotonin
- bitexploder 8mo agoSee: vagal neurons and vagus nerve. Serotonin from gut directly impacts those. Your brain still directly interprets that signal from the vagus nerve and uses that to up and down regulate mood and arousal. Impact is still significant
- sooheon 8mo agoYour nervous system extends over your entire body, the brain doesn't live in a firewalled jar.
- mortenjorck 8mo agoTo extend the metaphor, the brain may have a robust firewall, but it also transacts with millions of clients over a separate (electric rather than chemical) network.