Myth #1: Serotonin is only found in the brain Serotonin definitely plays a key role in our brain function. But, only a tiny fraction of all the serotonin in our bodies is actually in our brains.

Serotonin is involved in many functions, including digestion, mood, anxiety, stress, appetite, and cardiovascular health. Serotonin works by muting certain cells, which changes cell conversations.

In a discovery that could guide the development of next-generation antidepressants and antipsychotic medications, researchers ...

Genes influencing serotonin metabolism moderate the impact of stress Scientists have not identified a gene or a series of genes that cause depression. Rather, certain variations in genes, called ...

Scientists have uncovered how the brain’s 5-HT1A serotonin receptor—vital in mood regulation—functions at the molecular level.

An ambiguous pleasure chemical Serotonin is often painted as the brain's "pleasure chemical" but its precise role in the nervous system is ambiguous and perplexing: It's implicated in everything ...

Getting sun exposure is the #1 morning habit to boost vitamin D and serotonin for the day. Learn how to enhance your physical ...

This study's design couldn't show why serotonin loss might prompt loss of brain function, or prove a direct cause-and-effect relationship between serotonin and thinking declines. More information ...

CD8 T cells: immune cells that kill cancer cells. Immune checkpoint: molecule that can slow down immune responses; SERT acts as one in tumors. PD-1 blockade: type of immunotherapy that removes brakes ...