Serotonin

From WebRef.org
Jump to navigationJump to search The Worldwide Cigar Club

A hormone found in the brain, platelets, digestive tract, and pineal gland. It acts both as a neurotransmitter (a substance that nerves use to send messages to one another) and a vasoconstrictor (a substance that causes blood vessels to narrow). A lack of serotonin in the brain is thought to be a cause of depression. Also called 5-hydroxytryptamine.


Sponsor: Shop More to Save More from Grand Sale at PetCareSupplies.com ! Avail Extra 10% Discount & Free Shipping Sitewide. Buy Pet Products Online at Lowest Price + Use Coupon Code: GRAND10 for All Orders.