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Scientists are uncovering serotonin’s role in cancer – here’s what we know

By Jeremiah Stanley, Postdoctoral Researcher, Viral and Cancer Genes, University of Limerick

Serotonin is often described as the happiness chemical because of its well-known role in regulating mood. However, recent research suggests this familiar molecule may play an unexpected role in cancer development. Not through its effects on the brain, but through a completely different mechanism in other parts of the body.

Despite serotonin being commonly associated with the brain, almost 95% of the body’s…

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