Within the brain, chemical neurotransmitters like dopamine and norepinephrine regulate mood, emotions and many physiological and behavioral processes. Their imbalance can contribute to anxiety, ...

Also referred to as chemical messengers, neurotransmitters are chemical agents made and released by neurons. They are stored in vesicles at the terminal end (presynaptic terminal) of a neuron. Their ...

Depression medications affectthe concentration of certain neurochemicals in the brain, and/or their receptor sites. The word "antidepressant" actually refers to several different kinds of medication.