How to prevent a severe stroke: New research suggests mitigating these risks

Hypertension, atrial fibrillation and smoking pose a stronger risk for severe stroke, according to a new study. However, lifestyle changes can help prevent stroke.

​ Hypertension, atrial fibrillation and smoking pose a stronger risk for severe stroke, according to a new study. However, lifestyle changes can help prevent stroke. Read More Breaking News, Latest News and Videos | CNN