熬夜时喝大量提神饮料,可能引发猝死?|久久午夜神器
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深夜在加班、凌晨赶DDL,累了困了来罐功能饮料?快住手!近日,#熬夜喝大量提神饮料可能引发猝死#的话题冲上热搜,吓倒一片熬夜党!
南京市第二医院心血管内科副主任医师董皓解释,熬夜时,身体早已处于透支状态:交感神经持续紧张,心率加快,心肌耗氧量攀升。此时再摄入高咖啡因的功能饮料,无疑是“火上浇油”。咖啡因作为中枢神经兴奋剂,会进一步升高心率、增强心肌收缩、提高血压,这种双重刺激极易诱发恶性室性心律失常(如室速、室颤),甚至导致心源性猝死。
对于“喝了功能饮料后的确感觉清醒了”的说法,董皓强调,这种喝功能饮料后的“清醒”只是假象——疲劳并没有被消除,只是被暂时掩盖,身体仍在不断耗竭。
功能饮料并非人人适用,专家提醒以下人群尤其需要谨慎:
儿童及青少年:神经系统和心血管系统尚未发育完全,对咖啡因更敏感,可能引发焦虑、失眠或心律失常。
孕妇及哺乳期女性:咖啡因可通过胎盘或乳汁影响胎儿和婴儿,增加发育异常、流产、早产及兴奋躁动风险。
心血管疾病患者:包括高血压、冠心病、心力衰竭、心律失常、心肌病等患者,咖啡因可能触发心绞痛、心梗或血压骤升。
咖啡因不耐受或焦虑症患者:容易引发心慌、手抖、惊恐发作等症状。
服药人群:尤其是正在服用兴奋剂、抗抑郁药或降压药的人群,可能发生药物相互作用。
必须强调的是,真正恢复活力的方式仍是睡眠。但若不得已熬夜,可以尝试以下方法:
策略小睡:熬夜前或中途小睡20~30分钟,效果优于功能性饮料。
健康补给:多喝白开水,适当吃水果、坚果等零食维持体能,但要避免高糖高脂食物。
物理提神:用冷水洗脸、起身走动、通风换气,促进血液循环与大脑氧合。
温和饮品:选择淡茶或少量黑咖啡代替功能饮料,严格控制单次咖啡因摄入(建议<200mg/次)。
通讯员 金雨晨 扬子晚报/紫牛新闻记者 吕彦霖
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