step 1 Stress can be defined as a state of worry or mental tension caused by a difficult situation. Str

Define stress. | Numerade

Name: Problem 36, Chapter 11: Hole’s Essentials of Human Anatomy & Physiology
Uploaded: 2024-01-17T22:47:09-08:00
Duration: 1 min 23 s
Channel: Jennifer Stoner
Description: Define stress.

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Key Concepts

Stressor

A stressor is any event, situation, or stimulus that triggers a stress response. Stressors can be varied—ranging from physical threats and environmental pressures to emotional challenges and social conflicts—and they require the organism to adapt to new or demanding conditions.

Stress

Stress is a state of mental or physical strain that arises when an individual perceives that environmental or internal demands exceed their ability to cope. It involves a complex interplay of psychological and physiological factors that can affect an individual's emotional, cognitive, and behavioral well-being.

Stress Response

The stress response is the body’s natural reaction to perceived challenges or threats, often activating systems such as the nervous and endocrine systems. This response typically involves the release of hormones like adrenaline and cortisol, which prepare the body for a 'fight or flight' reaction by increasing alertness, energy, and physical readiness.

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