The noradrenaline/adrenaline (NA/A) ratio is a measure that reflects the balance between two key stress hormones — noradrenaline (norepinephrine) and adrenaline (epinephrine). Both play vital roles in the body’s fight-or-flight response, influencing heart rate, blood pressure, and energy mobilization. This ratio can shift in response to factors such as stress, physical activity, and overall health status.
Testing the noradrenaline (norepinephrine) to adrenaline (epinephrine) ratio can be particularly beneficial for certain individuals. Key groups who might benefit from this testing include:
Symptoms of a dysregulated noradrenaline (norepinephrine) to adrenaline (epinephrine) ratio can vary widely, depending on whether the imbalance leads to an excess or deficiency of these catecholamines. Here are some general symptoms associated with dysregulation:
A high or low noradrenaline (norepinephrine) to adrenaline (epinephrine) ratio can indicate different physiological or pathological states:
Regulating the noradrenaline (norepinephrine) to adrenaline (epinephrine) ratio involves managing the factors that influence the production and release of these catecholamines. Some general strategies can help maintain a healthy balance: