黄金4. 5小时。

Experiencing or witnessing stroke symptoms can be terrifying, but acting within the golden 4.5-hour window is vital. From personal experience, recognizing the sudden drooping of one side of the face or difficulty in speech are urgent warning signs that you must never ignore. One critical takeaway is avoiding drinking water or massaging the person, as these actions don’t help and could worsen the situation. Instead, swiftly call emergency services—995 in many regions—without delay. Every minute counts, as brain cells begin dying rapidly, affecting recovery outcomes. In my own encounter, a friend suffered a stroke and we hesitated at first, hoping symptoms would pass. Unfortunately, this delay caused permanent speech and movement impairment. Remembering the three Chinese characters "快,狠,准" (Quick, Ruthless, Accurate) is a life-saving mantra. Be quick to recognize symptoms, ruthless in seeking immediate medical help, and accurate by following professional medical advice. Thrombolytic therapy within 4.5 hours can dissolve clots, reducing the risk of long-term disability and enabling a better chance of recovery. Finally, sharing this knowledge with your family and community is essential. Stroke awareness can empower everyone to act decisively when time is critical, ensuring more lives are saved and quality of life preserved.