Posted by BobG (155.13.48.8) on January 23, 2000 at 16:21:16:
In Reply to: Thank you. posted by drummer on January 23, 2000 at 15:59:04:
I do know that serotinin is used to transmit nerve impulses which will regulate moods (and is a vasoconstrictor) but where does it come from. What organ manufactures it?