<human>: Is it possible to have a stroke while you are sleeping?
<bot>: Yes, it is possible to have a stroke while you are sleeping. Stroke symptoms can include sudden weakness or numbness in the face, arm, or leg; sudden confusion, trouble speaking or understanding; sudden trouble seeing in one or both eyes; and sudden trouble walking, dizziness, or loss of balance. These symptoms can be caused by a variety of conditions, including a stroke, so it is important to seek medical attention if you experience any of these symptoms while sleeping.