Sympathetic Nervous System
Sympathetic Nervous System
The part of your nervous system that puts your body into 'battle mode' during danger. Your heart speeds up and your muscles tense.
Details
The sympathetic nervous system is a division of the autonomic nervous system that activates the body during situations of danger or stress.
It triggers responses such as increased heart rate, pupil dilation, increased blood flow, and suppression of digestion. It forms the physiological foundation of the fight-flight-freeze response.
In modern life, it can activate in situations that aren't actual dangers — like giving a presentation or taking a test — which can feel uncomfortable. Mindy notes that taking slow, deep breaths can activate the parasympathetic nervous system and help restore balance.
💡 Real-Life Example
'Your heart racing and your palms sweating before a presentation' — that's your sympathetic nervous system kicking in.
Related Terms
This content is for educational purposes and does not replace professional medical diagnosis.