Neuroscience
Serotonin
A neurotransmitter that regulates mood, sleep, appetite, and social behavior. Often called the 'feel-good' chemical, though its functions are complex.
Biological Context
Most serotonin is actually in the gut, where it regulates digestion. In the brain, it affects mood stability, anxiety, and social dominance. Low serotonin is associated with depression. SSRIs (antidepressants) work by increasing serotonin availability.
Business Application
Organizational serotonin: the baseline mood and stability signals—job security, consistent leadership, predictable processes. Low organizational serotonin manifests as anxiety, conflict, and instability.