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Definition: Serotonin/Seratonin
Serotonin is a neurotransmitter, that is to say it is a chemical 'messenger' that allows communication between nerve cells.
Serotonin, along with other neurotransmitters, dopamine and noradrenaline
(norepinephrine), play a role in regulating mood.
Low levels of serotonin are associated with depression,
it was commonly thought that low serotonin levels were a cause of depression,
but more recent research shows that low levels of serotonin are the result
of depression.
Many modern anti-depressants
of the SSRI (Selective Serotonin Reuptake Inhibitor)
family act to make more serotonin available to the nerve cells.
During dream phases of sleep the production of
serotonin is reduced. Serotonin production is usually greatest during
periods of vigorous exercise.
Further information
* Depression
Forum
* Seratonin and Depression
Part of the Depression Learning Path by Uncommon Knowledge, this article
explains the relationship between serotonin and depression.