The given protein segment is correctly labeled. 
Definitions:
Sympathetic Mode
A state of the autonomic nervous system that triggers the body's rapid involuntary response to dangerous or stressful situations, activating the fight-or-flight response.
Parasympathetic Mode
The state of the autonomic nervous system that promotes relaxation, digestion, and energy conservation.
Catecholamine Production
Catecholamine production involves the synthesis of stress hormones, such as adrenaline and noradrenaline, which are critical for the body's stress response.
Beta-Endorphins
Endogenous opioid neuropeptides found in the nervous system and pituitary gland, playing a significant role in pain relief and pleasure.
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