当一个人突然遭受外界惊吓时,大脑会指令肾上腺分泌大量的儿茶酚胺。儿茶酚胺是一种神经介质,包括肾上腺素和去甲肾上腺素,主要由肾上腺分泌。当人处于极度惊恐状态时,肾上腺会突然释放出大量的儿茶酚胺,促使心跳突然加快,血压升高,心肌代谢的耗氧量急剧增加。过 When one suddenly suffers from external shocks, the brain orders the adrenal glands to secrete large amounts of catecholamines. Catecholamines are neurotransmitters, including epinephrine and norepinephrine, secreted mainly by the adrenal glands. When people are in extreme panic state, the adrenal glands will suddenly release a large amount of catecholamines, prompting a sudden increase in heart rate, blood pressure, myocardial oxygen consumption increased dramatically. Too