Sympathetic nervous system: The sympathetic nervous system becomes more

The sympathetic nervous system becomes more active during times of stress, and for some people, this activation can become excessive or prolonged. Sympathetic nervous system is defined as the main component of the ANS or autonomic nervous system that is primarily responsible for triggering a rapid and efficient reaction (such as the flight or fight response) in times of stress or emergency. The Sympathetic and Parasympathetic Nervous Systems are a part of the Autonomic Nervous System (ANS) present in the human body. The ANS regulates internal organ function by supplying smooth muscles and glands. The sympathetic nervous system (SNS) is one of the two main divisions of the autonomic nervous system (ANS). It acts in conjunction with the parasympathetic nervous system (PNS) to maintain homeostasis within the body.