Blood pressure when parasympathetic stimulation to the heart increases or blood pressure when sympathetic stimulation to the heart increases?

When sympathetic stimulation to the heart increases, it typically leads to an increase in heart rate and contractility, resulting in elevated blood pressure. In contrast, parasympathetic stimulation, primarily through the vagus nerve, decreases heart rate and can lead to lower blood pressure. Therefore, sympathetic activation raises blood pressure, while parasympathetic activation generally reduces it.