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      researchgate.net

      • Key components of the stress system are the hypothalamic-pituitary-adrenal (HPA) axis and the autonomic nervous system (ANS), which interact with other vital centers in the central nervous system (CNS) and tissues/organs in the periphery to mobilize a successful adaptive response against the imposed stressor (s).
  1. May 7, 2024 · The physiological responses of the body to stress have significant implications in various clinical applications, such as managing healthy patients, patients with hypoadrenalism undergoing surgery, and understanding the relationship between lifestyle changes and the stress response.

    • Brianna Chu, Komal Marwaha, Terrence Sanvictores, Derek Ayers
    • 2024/05/07
    • 2019
    • Chronic Activation of This Survival Mechanism Impairs Health
    • Sounding The Alarm
    • Techniques to Counter Chronic Stress

    A stressful situation — whether something environmental, such as a looming work deadline, or psychological, such as persistent worry about losing a job — can trigger a cascade of stress hormones that produce well-orchestrated physiological changes. A stressful incident can make the heart pound and breathing quicken. Muscles tense and beads of sweat...

    The stress response begins in the brain (see illustration). When someone confronts an oncoming car or other danger, the eyes or ears (or both) send the information to the amygdala, an area of the brain that contributes to emotional processing. The amygdala interprets the images and sounds. When it perceives danger, it instantly sends a distress sig...

    Many people are unable to find a way to put the brakes on stress. Chronic low-level stress keeps the HPA axis activated, much like a motor that is idling too high for too long. After a while, this has an effect on the body that contributes to the health problems associated with chronic stress. Persistent epinephrine surges can damage blood vessels ...

    • hhp_info@health.harvard.edu
  2. Oct 17, 2020 · The adaptive response of each individual to stress is determined by a multiplicity of genetic, environmental, and developmental factors. Changes in the ability to effectively respond to stressors (e.g. inadequate, excessive and/or prolonged reactions) may lead to disease.

    • Constantine Tsigos, Ioannis Kyrou, Eva Kassi, George P. Chrousos
    • 2020/10/17
    • 2016
  3. Nov 9, 2023 · Sudden and severe stress generally produces: Increase in heart rate. Increase in breathing (lungs dilate) Decrease in digestive activity (don’t feel hungry) Liver releases glucose for energy. Firstly, our body judges a situation and decides whether or not it is stressful.

  4. Nov 1, 2018 · The autonomic nervous system has a direct role in physical response to stress and is divided into the sympathetic nervous system (SNS), and the parasympathetic nervous system (PNS). When the body is stressed, the SNS contributes to what is known as the “fight or flight” response.

  5. As has been discussed in this review, various factors, for example, hormones, neuroendocrine mediators, peptides, and neurotransmitters are involved in the body's response to stress. Many disorders originate from stress, especially if the stress is severe and prolonged.

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  7. Jul 10, 2024 · Elevated cardiovascular responses, such as a faster heart rate, an increased cardiac output, and high blood pressure. Tense muscles. Deepened respiration. Sweating. Dilation of pupils. Redirection of blood flow from the digestive tract to the skeletal muscles. A reduction in digestive system functioning.

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