Low levels of serotonin in the brain are seen as a possible cause of depression and many antidepressants act by blocking a protein that transports serotonin away from the nerve cells. A brain imaging ...

Drugs known as antidepressants target the serotonin transporter in nerve cells and are among the most commonly prescribed medicines worldwide, but are sometimes associated with significant side ...

A new study explores the interplay between the serotonin system and estradiol in the brain, showing that the central nervous system in patients with premenstrual dysphoric disorder (PMDD) seems to ...

Why some people develop major depressive disorder and others do not is a complex and not well-understood process. Several factors have been discussed to contribute to depression, among them: Genetic ...

A tiny switch in DNA allows neurons to change their function depending on the environment and alter behavior in worms.

In the last couple blog posts, I introduced the serotonin transporter promoter gene, or 5-HTTLPR. It’s a gene that controls how many serotonin re-uptake transporters you have, and differences in this ...

The ancient biochemical 5-hydroxytryptamine—also known as 5-HT and serotonin—has been controlled through evolution to be used widely across the plant and animal kingdoms. 5-HT is used by mammals as a ...

Anxiety is not a one size fits all experience. When faced with the same situation or stressor, some people remain calm, while others panic. Now, due to a strange new study on marmosets, researchers ...

Researchers have discovered new connections between the gut and brain that hold promise for more targeted future treatments for depression and anxiety, and which could point scientists to ways of ...

Serotonin is known to regulate digestion at multiple levels within the human gastrointestinal, and up to 95% of the mood-regulating hormone is released into the gut by certain intestinal cells. What's ...