Noradrenaline

Definition

Noradrenaline, also known as norepinephrine, is a hormone and neurotransmitter involved in the body's stress response, helping to regulate heart rate and blood pressure.

Scientific / Technical Definition

Noradrenaline is a catecholamine with multiple roles including functioning as a hormone and a neurotransmitter. As a neurotransmitter, it is crucial for attentiveness, emotions, sleeping, dreaming, and learning. Released by the adrenal medulla, it plays a key role in the 'fight or flight' response, increasing heart rate, blood pressure, and blood glucose levels.

Benefits

• Helps regulate heart rate and blood pressure.
• Increases alertness and focus.
• Enhances memory recall and concentration.
• Aids in adaptation to stress.

Examples

• Noradrenaline is not found in food but is synthesized in the body. Certain foods can influence its levels, such as bananas, chocolate, and protein-rich foods that contain tyrosine.

Additional Information

• Effects: Noradrenaline affects the body by preparing it for 'fight or flight' responses, increasing cardiac output, and redirecting blood to essential areas like muscles.

Related Terms

• Adrenaline
• Dopamine
• Stress Hormones
• Neurotransmitters

References

• Noradrenaline: Its role in stress and mental health
• The Role of Noradrenaline in the human body