A collage of a ball-and-stick model of a serotonin molecule, a sad-looking person, some drug capsules, and a brain Credit: Shutterstock/Madeline Monroe/C&EN For decades, doctors, neuroscientists, and ...

Research shows that reward-based learning requires the two neuromodulators to balance one another's influence -- like the accelerator and brakes on a car If you've heard of two of the brain's chemical ...

Antidepressants treat symptoms of depression by increasing levels of brain signaling molecules (neurotransmitters) such as serotonin, as with the most widely used type of antidepressant, selective ...

Why do parasites cause loss of appetite? Scientists have identified a gut-to-brain signaling pathway involving tuft cells and ...