How Emotional Fluctuations Affect Blood Pressure: Mechanisms, Hazards, and Management Recommendations

Avoid Excessive Emotions: Studies have found that individuals who adapt well psychologically to rapid changes in the social environment generally have less volatile blood pressure; however, those who adapt poorly experience easily fluctuating blood pressure with changes in the social environment. This suggests that emotions have a significant impact on blood pressure, and patients with hypertension should avoid excessive emotional fluctuations.

From a modern medical perspective, excessive emotions, whether anger, anxiety, fear, or extreme joy or sorrow, can cause a sudden increase in blood pressure. This is because neurological and psychological factors disrupt higher nervous activity, leading to increased reactivity of the higher autonomic nervous system centers that regulate blood pressure. This results in increased secretion of vasoactive substances such as catecholamines in the blood, causing small artery spasms and constriction, thus raising blood pressure.

Emotions belong to higher nervous activity. Emotional excitement triggers a response in the cerebral cortex, significantly enhancing the activity of the sympathetic-adrenal system. At this time, the release of the neurotransmitter norepinephrine from the sympathetic nerve endings throughout the body increases, and the amount of adrenaline secreted into the blood by the adrenal medulla also increases significantly. Under the combined influence of the sympathetic nervous system and adrenaline, on the one hand, the heart contractes suddenly more strongly and rapidly, increasing cardiac output; on the other hand, small blood vessels in most parts of the body constrict rapidly, increasing peripheral resistance. Both of these factors can lead to a temporary increase in blood pressure. Simultaneously, if emotions can be quickly calmed, then on the one hand, nerve impulses from the cerebral cortex decrease, and the activity of the sympathetic-adrenal system weakens, which can lower blood pressure; on the other hand, when blood pressure suddenly rises, the nervous system can also restore blood pressure through conditioned reflexes via the baroreceptors in the aortic arch and carotid sinus.

However, for patients with hypertension, although the aortic arch and carotid sinus play a role in regulating the cardiovascular center and thus balancing blood pressure, a temporary increase in blood pressure caused by excessive emotional stress can easily trigger stroke, myocardial infarction, cerebral hemorrhage, or even endanger life. Therefore, patients with hypertension should avoid excessive emotional stress.