Art Attack Serotonin Hormone Molecule DNA Chemistry Science Party Pendant Necklace 18" in length, Pendant is .5" tall x 1" wide Serotonin is a hormone found in our nervous system, as well as in the nervous system of all other animals. This hormone (neurotransmitter) is widely used by neurons to transmit signals. When serotonin produced tension is eased and the person feels less stressed and more focused and relaxed. Music increases serotonin levels. Studies suggest that falling in love can affect your serotonin levels. Low levels of serotonin in devout religious people may be associated with intense, hallucinogenic religious experiences You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!