Examlex
A sodium atom with a mass number of 23 has 23 neutrons.
Cortisol
A type of glucocorticoid that provides a natural defense against inflammation and regulates carbohydrate metabolism.
Norepinephrine
One of two major neurotransmitters of the autonomic nervous system.
Sympathetic Nervous System
Part of the autonomic nervous system that prepares the body for rapid action in response to stress or danger, triggering the "fight or flight" response.
Stressful Situations
Circumstances or events that place a psychological or physical demand on an individual, often triggering stress responses.
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