The consequences of a stroke depend on the type of stroke, its severity, and its location in the brain. A stroke can be debilitating, causing paralysis, loss of vision, loss of speech, or loss of memory. In severe cases or when medical intervention cannot be accessed quickly enough, a stroke can be fatal. Quickly getting medical help can mean the difference between death, severe debilitation, and a possible recovery. If you or someone you are with is experiencing symptoms of a stroke (loss of muscle tone or paralysis on one side, slurred or confused speech, sudden blindness, confusion, and/or severe headache), call 911 (or the emergency number in your area).