EVERYDAY SCIENCE

Detailed explanation-1: -Your sympathetic nervous system is a network of nerves that helps your body activate its “fight-or-flight” response. This system’s activity increases when you’re stressed, in danger or physically active.

Detailed explanation-2: -With regards to the nervous system, stress will activate the sympathetic nervous system which in turn activates the adrenal glands.

Detailed explanation-3: -Increased activity in the sympathetic nervous system leads to increases in sweating (electrodermal activity), respiration rate, heart rate, blood pressure, vascular vasoconstriction and pupil dilation.

Detailed explanation-4: -When the body is stressed, the SNS contributes to what is known as the “fight or flight” response. The body shifts its energy resources toward fighting off a life threat, or fleeing from an enemy. The SNS signals the adrenal glands to release hormones called adrenalin (epinephrine) and cortisol.

Detailed explanation-5: -One, the sympathetic nervous system (SNS), has variously been called the “fright, fight, or flight” system, the arousal system, or the stress system. It mobilizes resources for emergency responses such as self-defense, and its effects include increases in heart rate, blood pressure and respiration, among others.