Adrenaline

Definition

Adrenaline, also known as epinephrine, is a hormone produced by the adrenal glands that helps to prepare the body for 'fight or flight' responses during stressful situations.

Scientific / Technical Definition

Adrenaline is a catecholamine hormone and neurotransmitter that plays a critical role in the body's acute stress response. It is synthesized from tyrosine in the adrenal medulla and acts on various organs to increase heart rate, dilate air passages, and mobilize energy stores, among other functions.

Benefits

• Increases alertness and focus
• Enhances physical performance in response to immediate threats
• Facilitates the rapid mobilization of energy
• Helps direct blood flow to essential organs like the heart and lungs during stress

Examples

• Adrenaline is not present in food; it is a hormone produced within the body.

Additional Information

• Effects: This hormone promotes increased heart rate, heightened senses, and a burst of energy, preparing the body for rapid action.

Related Terms

• Cortisol
• Noradrenaline
• Fight or Flight Response
• Hormones
• Adrenal Glands

References

• Adrenaline and its effects on the body
• The role of adrenaline in the physiological stress response