Damage to the brain from interruption of its blood supply.
Symptoms of stroke include trouble walking, speaking and understanding, as well as paralysis or numbness of the face, arm or leg. Early treatment with medication like tPA (clot buster) can minimise brain damage.
Other treatments focus on limiting complications and preventing additional strokes.

Symptoms :

People may experience:

• Muscular: difficulty walking, instability, paralysis with weak muscles, problems with coordination, stiff muscles, overactive reflexes, or paralysis of one side of the body
• Visual: blurred vision, double vision, sudden visual loss, or temporary loss of vision in one eye.
• Speech: difficulty speaking, slurred speech, or speech loss
• Whole body: fatigue, light-headedness, or vertigo
• Limbs: numbness or weakness
• Sensory: pins and needles or reduced sensation of touch
• Facial: muscle weakness or numbness
• Also common: difficulty swallowing, headache, inability to understand, mental confusion, or rapid involuntary eye movement