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ehstvk ehstvk
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8 years ago
are sympathetic and parasympathetic systems activated at the same time or they are like on-off switches and in one time one of them can be activated?
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8 years ago
The sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. The parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

Therefore, they are not activated at the same time.
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