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Serotonin (/ ˌ s ɛr ə ˈ t oʊ n ɪ n, ˌ s ɪər ə-/) [6] [7] [8] or 5-hydroxytryptamine (5-HT) is a monoamine neurotransmitter.Its biological function is complex, touching on diverse functions including mood, cognition, reward, learning, memory, and numerous physiological processes such as vomiting and vasoconstriction.
The observation of this efficacy led to the monoamine hypothesis of depression, which postulates that the deficit of certain neurotransmitters is responsible for depression, and even that certain neurotransmitters are linked to specific symptoms. Normal serotonin levels have been linked to mood and behaviour regulation, sleep, and digestion ...
This article needs to be updated. The reason given is: Many outdated sources and information (older than five years). Please help update this article to reflect recent events or newly available information. (July 2024) Medical condition Major depressive disorder Other names Clinical depression, major depression, unipolar depression, unipolar disorder, recurrent depression Sorrowing Old Man (At ...
When it comes to depression symptoms, movement makes a difference. A new study shows upping your step count may help. Just 1,000 more steps a day could reduce your risk of depression, study suggests
Serotonin syndrome (SS) is a group of symptoms that may occur with the use of certain serotonergic medications or drugs. [1] The symptoms can range from mild to severe, and are potentially fatal. [ 4 ] [ 5 ] [ 2 ] Symptoms in mild cases include high blood pressure and a fast heart rate ; usually without a fever . [ 2 ]
NHS figures show that the number of people in England taking antidepressants continues to rise, with 8.3m patients receiving them in 2021/22.
Basically, the researchers gave an online survey to U.S. adults between 65 and 90 years old. The survey asked the participants about their expectations regarding aging and subjective cognition.
The adaptation allows the presynaptic synthesis and secretion of norepinephrine to return to, or even exceed, normal levels of norepinephrine in the synaptic clefts. Overall, inhibition of norepinephrine reuptake induced by TCAs leads to decreased rates of neuron firing (mediated through α 2 autoreceptors), metabolic activity, and release of ...