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 serotonin is produced in the gut. From there, it enters the bloodstream and travels to various organs and tissues, including the liver, pancreas, muscles, bones, fat tissue, and immune cells.

Gut serotonin helps regulate blood sugar levels through its actions on the liver and pancreas, and regulates body temperature by acting on fat tissue.

It also contributes to maintaining h

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