A sudden, momentary numbness in a foot or hand, unclear vision in one eye, or stammering, incoherent speech which soon returns to normal are the warning signs of apoplexy and should not be ignored.
許多人有過這樣的經驗：突然一手或一腳發麻，動彈不得；一隻眼睛看不清楚；或是說起話來結結巴巴、前言不對後語，但沒多久又恢復正常。