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Which cells form the blood-brain barrier that protects the brain from harmful substances in the blood?
Parasympathetic Nervous System
Part of the autonomic nervous system that conserves energy by slowing the heart rate, increasing intestinal and gland activity, and relaxing sphincter muscles.
Stress
The body's response to any demand or challenge, which can be physical, mental, or emotional, and can have both positive and negative effects.
PTSD
Post-Traumatic Stress Disorder; a mental health condition triggered by experiencing or witnessing a terrifying event, characterized by flashbacks, nightmares, and severe anxiety.
Traumatic Event
An emotionally distressing or life-threatening experience that can have lasting effects on an individual's mental and physical well-being.
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