Host slugs given Prozac to increase their serotonin levels no longer avoid parasitic nematodes, the same behavior seen in infected slugs.

One-third of babies who died of SIDS had higher-than-normal levels of the neurotransmitter in their blood serum, according to a study. 

Activating serotonin receptors halts a binge-like eating behavior in mice, researchers report.

Serotonin’s long-debated role in sleep promotion is temperature-dependent.

Reduction in telomere length is associated with stress early on in life and may have a genetic component, researchers find.

Deficiencies in a cellular motor that carries a serotonin receptor are associated with anxiety in mice.

The mother of disabled twins doggedly pursued the root of her children's illness and found it in their genome profiles.