It may be a result of an imbalance of chemicals in the brain called neurotransmitters, which help regulate mood.

Depression: Aging can change your body's levels of serotonin, which helps regulate mood.

The other mechanisms by which lithium might help to regulate mood include the alteration of gene expression.

Serotonin is a chemical messenger that helps regulate mood, appetite, and sleep.

A doctor will usually prescribe antidepressants with other medicines that help regulate mood, and he or she must carefully monitor the child.

Hypericin and hyperforin act on chemical messengers in the nervous system that regulate mood.

We do not yet know to what extent medication administered during the developmental process permanently impairs the potential to regulate mood.

Some of these chemicals, such as serotonin, help regulate mood.

But the drug is unique in that it also blocks receptors for the chemical serotonin, which helps regulate mood.

Since attention is involved in performing everyday tasks and regulating mood, meditation might lead to other benefits.