Moreover, it may enhance the production of "pleasure hormones" such as serotonin.

这种兴奋剂类型的物质能令人心情愉悦，并促进包括血清素在内的某些和快乐有关的激素的分泌。

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Physiological factors, such as serotonin levels or CRP, for example, appeared not to have much impact.

生理因素，如羟色胺水平或C反应蛋白，举例来说，似乎没有多大影响。

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Music has also been shown to increase the level of neurotransmitters such as serotonin, which are linked to mood.

音乐还显示了增加神经递质如五羟色胺的水平，这种物质跟情绪有关。

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Some scientists now believe that tension headaches may result from changes among brain chemicals such as serotonin.

VOA: special.2010.03.30

They also block other dopamine receptors linked to different neurotransmitters such as those for serotonin and glutamate.

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Naturally occurring chemicals in the brain such as dopamine and serotonin do contribute to sexual functioning, but it's not clear how they are related to sex addiction.

CNN: When sex becomes an addiction

So-called selective serotonin reuptake inhibitors such as Paxil, Prozac and Zoloft, gained widespread use on the theory that depressed people suffer from a deficit of the brain chemical serotonin.

FORBES: Health Care