Sympathetic response

The sympathetic response, also known as the fight-or-flight response, is a physiological reaction initiated by the sympathetic nervous system in response to stress or perceived danger, resulting in increased heart rate, blood pressure, and energy mobilization. This response is crucial in clinical practice as it affects cardiovascular health and can exacerbate conditions like anxiety or hypertension. An example of its clinical relevance is in acute stress reactions, which may lead to complications such as myocardial infarction.