For decades, the idea that the human brain might naturally produce the psychedelic compound DMT has attracted considerable attention. It has been speculated that DMT could function as a natural ...

A new study finds no evidence of naturally occurring DMT or its storage in the serotonin neurons of the rat brain.

Serotonin reuptake inhibitors (SRIs) are a class of drugs that affect the brain’s serotonin system, and doctors most commonly prescribe them as antidepressants. SRIs increase the levels of serotonin ...

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 ...

Serotonin is a neurotransmitter important for mood, digestion, and sleep. You can increase serotonin levels naturally through exercise and sunlight. Serotonin is a naturally occurring monoamine ...

Researchers have discovered tumor-neuron interactions that regulate the growth of ependymoma brain tumors. A study published in Nature reveals the functional relevance of tumor-neuron interactions ...

A recent Science Immunology study revealed that neonatal gut bacteria produce serotonin and down-regulate monoamine oxidase A (MOA) to limit serotonin breakdown, thereby promoting immune tolerance.

Serotonin is a hormone and neurotransmitter—a chemical messenger that transmits signals between nerve cells in the body. Serotonin has a positive influence on the cardiovascular system and the ...