猝死看似突然，但其实在发生前1小时，身体往往会发出一些预警信号。了解这些征兆，有助于及时干预、挽救生命。首先，胸痛或胸部压迫感是最常见的预警之一，尤其在体力活动或情绪激动后出现，可能提示心脏供血不足。其次，突发的呼吸困难、气短，尤其是在休息状态下也难以缓解，可能是心力衰竭或严重心律失常的表现。此外，头晕、眼前发黑、甚至晕厥，也可能是心脏泵血功能骤降导致脑部供血不足的信号。部分人还会出现极度疲劳、冷汗、恶心或上腹部不适，这些症状容易被误认为是肠胃问题，实则与心脏相关。特别值得注意的是，有些猝死前兆并无典型胸痛，尤其在女性、老年人或糖尿病患者中更为隐匿。因此，一旦在短时间内出现上述异常症状，尤其是持续不缓解或迅速加重，应立即停止活动、拨打急救电话，并尽快就医。预防猝死的关键在于日常健康管理：规律作息、合理饮食、适度运动、控制“三高”（高血压、高血脂、高血糖），以及定期体检，特别是对有心血管疾病家族史的人群。早识别、早干预，才能有效降低猝死风险。
Sudden cardiac death may seem abrupt, but the body often sends warning signs within the hour before it occurs. Recognizing these signals can enable timely intervention and potentially save a life. First, chest pain or a feeling of pressure—especially after physical exertion or emotional stress—may indicate insufficient blood supply to the heart. Second, sudden shortness of breath or difficulty breathing, even at rest, could signal heart failure or a serious arrhythmia. Additionally, dizziness, blurred vision, or even fainting may result from a sudden drop in the heart’s pumping ability, leading to reduced blood flow to the brain. Some individuals also experience extreme fatigue, cold sweats, nausea, or upper abdominal discomfort—symptoms often mistaken for gastrointestinal issues but actually linked to cardiac problems. Notably, classic chest pain may be absent in certain groups, such as women, older adults, or people with diabetes, making symptoms more subtle. Therefore, if any of these unusual symptoms appear suddenly and persist or worsen rapidly, one should stop all activity immediately, call emergency services, and seek medical attention without delay. Preventing sudden cardiac death hinges on consistent health management: regular sleep, balanced diet, moderate exercise, control of hypertension, high cholesterol, and diabetes (‘the three highs’), and routine check-ups—especially for those with a family history of cardiovascular disease. Early recognition and prompt action are key to reducing the risk of sudden death.
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