Stress Response

Definition

The stress response is the body's way of reacting to a perceived threat or challenge, involving physiological changes like increased heart rate and heightened alertness to deal with the situation.

Scientific / Technical Definition

The stress response, also known as the 'fight or flight' response, involves a series of physiological and biochemical changes initiated by the hypothalamus and mediated by the endocrine system, particularly through the release of hormones such as cortisol and adrenaline. This response prepares the body to deal with perceived dangers by activating the sympathetic nervous system.

Benefits

• Helps the body respond to immediate threats.
• Enhances mental alertness and focus.
• Increases energy and physical capabilities temporarily.
• Boosts performance in challenging situations.

Examples

• Increased heart rate when facing a stressful situation.
• Elevated levels of cortisol during a stressful event.

Additional Information

• Effects: The stress response can lead to changes in metabolism, suppress the immune system if chronic, and may impact emotional well-being if activated frequently.

Related Terms

• Cortisol

References

• Understanding the Stress Response
• The Endocrinology of the Stress Response