【英语时差8,16】嘻哈音乐助改善中风（上）（在线收听）

 Stroke is the number one cause of adult disability. But it doesn’t have to be that way. In fact, if someone having a stroke gets to the hospital in time, drugs used to break up the blood clot in the brain that’s causing the stroke can prevent much of the damage. But the treatment is only effective if the patient gets to the hospital within three hours after the stroke begins. And the problem is that only three percent of stroke victims get treatment within that short window. Why? Because most people aren’t familiar with the telltale signs of stroke. Even people having a stroke don’t always recognize it as such.