Tyrosine: Some feel that stress depletes catecholamine neurotransmitters such as norepinephrine in the brain.Tyrosine is a precursor for the synthesis of catecholamines, norepinephrine, epinephrine, and dopamine. Mental well-being is much more complex than any one neurotransmitter, but supplemental tyrosine may increase ne levels in the brain. Nausea, headache, fatigue, heartburn & arthralgias may come too.
Answered 12/9/2013
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