Core Viewpoint - The chairman of Luckin Coffee, Li Hui, is a heavy coffee user, reportedly consuming six to seven cups daily, which raises concerns about caffeine intake safety [1][3]. Group 1: Caffeine Consumption Guidelines - Medical advice suggests that daily caffeine intake should be below 400mg, which translates to a maximum of four cups of black coffee, depending on the coffee's strength [5][6]. - Consuming six to seven cups is considered excessive and may lead to health issues [6]. Group 2: Health Risks of Excessive Caffeine - Short-term excessive caffeine intake can cause symptoms in various body systems: - Cardiovascular: May lead to palpitations, blood pressure fluctuations, and increased heart burden [8]. - Nervous: Can result in anxiety, restlessness, tremors, and insomnia, affecting emotional and sleep quality [7]. - Digestive: May stimulate gastric acid secretion, causing discomfort and exacerbating gastroesophageal reflux [9]. Group 3: Recommendations for Safe Consumption - The key to coffee consumption is moderation, with special caution for certain groups: - Individuals with cardiovascular diseases should avoid coffee [10]. - Those experiencing insomnia or anxiety should also refrain from consumption [11]. - Special populations, including adolescents and pregnant or breastfeeding women, should limit intake to below 200mg of caffeine daily and consult a doctor if necessary [12].

近日，瑞幸咖啡董事长、大钲资本创始人黎辉在媒体专访时坦言，自己是重度咖啡使用者，开会的时候咖啡不能停，健身前为了提升运动表现也会喝上一 杯，"平均下来，我估计一天可能会喝六七杯以上吧"。 瑞幸咖啡董事长黎辉 来源：中国企业家杂志 咖啡，如今已经成为很多人生活中的"提神利器"，无论是清晨唤醒活力，还是午后驱散困意，一杯咖啡似乎都能轻松搞定。但是，喝咖啡的"安全线"究竟 在哪里？ 短时间内摄入过多咖啡因，身体会发出哪些警报？黄丹医师指出，这会引发多个系统的不适症状： 心血管系统：可能引发心慌、心悸、血压波动，增加心脏负担。 安全红线： 每日咖啡因摄入应低于400mg 针对这一问题，江苏广电荔枝新闻中心记者采访了江苏省中西医结合医院心血管科副主任中医师黄丹。黄医生明确表示："一天摄入六七杯肯定是多了。" 她给出了明确的医学建议："我们现在医学上有明确的标准，一天要小于400mg的咖啡因摄入。" 这个标准如何换算成我们手中的咖啡杯呢？黄医生解释道："如果是纯的黑咖啡，肯定是不能超过四杯的。有的咖啡浓度很高的话，可能两杯的咖啡因含 量就已经达到400mg了，所以六七杯太多了。" 过量饮用 身体这些系统可能会"亮红灯" ...