Which of the following symptoms is associated with a stroke?

Sudden weakness or paralysis is a hallmark symptom of a stroke. This condition occurs when blood flow to a part of the brain is interrupted, either due to a blockage (ischemic stroke) or bleeding (hemorrhagic stroke). The affected area of the brain can no longer function properly, resulting in the loss of motor control on one side of the body or specific regions, often manifesting as weakness or paralysis.

Recognizing this symptom is crucial because it forms part of the FAST criteria (Face, Arms, Speech, Time), which helps people identify a stroke quickly and seek immediate medical attention. When faced with sudden weakness, especially if it occurs on one side of the body, it is an urgent signal to act, as timely intervention can significantly improve outcomes and reduce long-term disability.

In contrast, while symptoms like increased heart rate, shortness of breath, and persistent headache can be concerning, they are not specific indicators of a stroke, making the identification of sudden weakness or paralysis a critical element in emergency response for strokes.