from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An organic compound, C10H12N2O, formed from tryptophan and found in animal and human tissue, especially the brain, blood serum, and gastric mucous membranes, and active as a neurotransmitter and in vasoconstriction, stimulation of the smooth muscles, and regulation of cyclic body processes.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An indoleamine neurotransmitter, 5-hydroxytryptamine, that is involved in depression, appetite, etc., and is crucial in maintaining a sense of well-being, security, etc.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a neurotransmitter involved in e.g. sleep and depression and memory
Anxiety and depression occur when too much serotonin is reuptaken and spends its time hiding in the nerve cells.
These experiments, which might have been the last performed by the hands of Jessell, led to the isolation of genes encoding the seven transmembrane domain serotonin receptor,
If serotonin from the pineal does get back into the brain proper, it a must do so through such a circuitous route that many workers discredit this possibility.
For the past two decades, treatments for depression have been based primarily on a brain chemical called serotonin, which is also linked to mood.
It may be that this essential fatty acid helps to build brain receptors for neurotransmitters such as serotonin, which is known to improve mood.
Spending time with a BFF tamps down the "fight-or-flight" stress hormones and helps a woman's body create serotonin, which is the feel good brain neurotransmitter that keeps depression at bay and mood even.
The current generation of anti-depressant drugs, which change the way the brain absorbs a neurotransmitter called serotonin, are probably no more effective than placebos.
People suffering from depression so characteristically have lower serotonin levels that an entire class of anti-depressive medications called serotonin uptake inhibitors including Prozac, Paxil, and Zooloft have been developed that raise brain levels of serotonin.
It helps to raise levels of the feel-good and calming brain chemical, serotonin, which is often low in PMS sufferers.
They work by preventing a brain chemical called serotonin from being reabsorbed by neurons.
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