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HomeHomework HelpbiologyStress Physiology

Stress Physiology

Stress physiology and response refer to the biological processes that occur in the body when an individual perceives a threat or challenge, activating the hypothalamic-pituitary-adrenal (HPA) axis and the autonomic nervous system. This response triggers the release of stress hormones, such as cortisol and adrenaline, preparing the body for a "fight or flight" reaction.

intermediate
3 hours
Biology
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Overview

Stress physiology is a vital area of study that examines how our bodies react to stressors, both physical and emotional. Understanding the fight or flight response, hormonal changes, and the effects of chronic stress is crucial for managing health. Stress can lead to various health issues, making it...

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Key Terms

Stress
A state of mental or emotional strain resulting from challenging circumstances.

Example: Studying for exams can cause stress.

Fight or Flight Response
The body's automatic response to perceived threats, preparing for action.

Example: When faced with danger, your heart races as part of the fight or flight response.

Cortisol
A hormone released during stress that helps regulate metabolism and immune response.

Example: High cortisol levels can lead to weight gain.

Sympathetic Nervous System
Part of the autonomic nervous system that prepares the body for action.

Example: The sympathetic nervous system activates during stressful situations.

Chronic Stress
Long-term stress that can negatively affect health and well-being.

Example: Chronic stress can lead to depression.

Coping Mechanisms
Strategies used to manage stress and difficult emotions.

Example: Exercise is a healthy coping mechanism.

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Neurobiology of Stress
Study the brain mechanisms involved in stress responses.
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Key Concepts

Fight or Flight ResponseHormonal ChangesChronic Stress EffectsCoping Mechanisms