Medically reviewed by Jamie Johnson, RDN Key Takeaways Tryptophan is an essential amino acid that naturally exists in certain foods.Your body turns tryptophan into serotonin, which has many roles, ...

Scientists have studied the main source of serotonin in the brain -- the dorsal raphe nucleus (DRN). By studying how activating the brain's 'serotonin center' affects awake animals for the first time, ...

Is food the key to happiness? Emotional eating is certainly a real concept, but there are foods you can eat that naturally contain tryptophan, a serotonin-producing amino acid. Other ...

Serotonin from the mother is taken up by the fetal placenta, which then produces a myriad of hormones, growth factors, and regulators that are delivered to the fetus. Credit: Yale University For the ...

Serotonin helps you feel happier, calmer, and more focused. Dopamine makes you feel motivated, accomplished, and productive. Serotonin and dopamine deficiencies have been linked to conditions like ...

New insights into the opposing actions of serotonin-producing nerve fibers in mice could lead to drugs for treating addictions and major depression. New insights into the opposing actions of serotonin ...