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Norepinephrine Levels

Meaning

Norepinephrine Levels describe the quantifiable concentration of the catecholamine norepinephrine (noradrenaline) found in biological fluids, reflecting its status as both a neurotransmitter and a circulating hormone. Elevated levels often indicate acute or chronic sympathetic nervous system activation, commonly associated with stress or high metabolic demand. Conversely, depressed levels can correlate with states of fatigue, reduced vigilance, and impaired stress adaptation capacity. Accurate measurement is key to assessing autonomic nervous system load.