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 ...

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 ...

January 10, 2011 — New findings point to a robust relationship between depression, stress, and the serotonin transporter promoter polymorphism 5-HTTLPR, according to the authors of a meta-analysis in ...

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 ...

To enjoy the scent of morning coffee and freshly baked cookies or to perceive the warning smell of something burning, the brain needs two types of cells, neurons and astrocytes, to work closely with ...

Researchers have discovered new connections between the gut and brain that hold promise for more targeted treatments for depression and anxiety, and could help prevent digestive issues in children by ...

Comparing PET scans of more than 90 adults with and without mild cognitive impairment (MCI), Johns Hopkins Medicine researchers say relatively lower levels of the so-called "happiness" chemical, ...

The neurotransmitter serotonin can adversely affect the heart's mitral valve, contributing to a heart disease known as degenerative mitral regurgitation, according to a new multicenter study involving ...

People with fewer happy chemicals in their brain might be at greater risk of neurodegeneration from Alzheimer's disease, according to new research. Of people with mild cognitive impairment, those with ...

Loss of the "happiness" brain hormone serotonin might play a role in the decline of brain function as a person ages, a new study reports. People with mild cognitive impairment (MCI) had up to 25% ...