A stroke is a medical emergency when blood flow to the brain is blocked or a vessel bursts, causing sudden brain damage. Common symptoms include face drooping, arm weakness, speech trouble, confusion, sudden severe headache, vision problems, dizziness and loss of balance — remember FAST to act quickly. Early treatment within hours can save lives and improve recovery. With expert care from Dr Arvind Nanda, recognising stroke warning signs and timely intervention are crucial for better outcomes and reduced long-term disability.