About 780,000 Americans each year suffer a stroke. And stroke kills more than 150,000 people a year, making it the No. 3 cause of death behind heart disease and cancer.
Who is at risk? People with high blood pressure, diabetes, and high cholesterol, smokers, heavy drinkers, and those who are obese.
Dr. Kamakshi Lakshminarayan, a University of Minnesota neurologist, explains what you should do to lower your risk.
At least 60 percent of Americans are deficient in vitamin D. That's according to a survey of blood tests by the Centers for Disease Control and Prevention.
University of Minnesota nutritionist Kim Robien tells us why vitamin D is important for our health.