An increase can be in an amount of serotonin.Logical formLearned from2 sentences. (Serotonin deficiency) may cause depression.Logical formLearned from2 sentences. A (serotonin receptor agonist) can be a compound.Logical formLearned from2 sentences. Transporters can be constituted-of-or-filled-with serotonin.Logical formLearned from2 sentences. A correlation can be between (serotonin activity).Logical formLearned from2 sentences. Variants may pertain-to a (serotonin transporter gene).Logical formLearned from2 sentences. An effect may pertain-to a (brain chemical serotonin).Logical formLearned from2 sentences. A drug may reduce a (brain chemical serotonin).Logical formLearned from2 sentences. A (brain chemical serotonin) may blunt sexual desire.Logical formLearned from2 sentences. Foods may increase serotonin.Logical formLearned from2 sentences. An imbalance can be between serotonin.Logical formLearned from2 sentences. A (brain chemical serotonin) can be (appetite suppressant).Logical formLearned from2 sentences. A serotonin may be made.Logical formLearned from2 sentences. A (neurotransmitter serotonin) may pertain-to a body.Logical formLearned from2 sentences. A rise can be in serotonin.Logical formLearned from2 sentences.