Some of the biggest killers worldwide are diseases that can largely be prevented: heart disease, chronic respiratory disease, cancers and diabetes. But it will require some effort.

The vast majority of pregnancies are uncomplicated, with healthy moms and healthy babies. But one of the more common pregnancy complications when one occurs is pre-eclampsia.

Hypertension, diabetes and smoking  are known to increase your chances for stroke. A new study shows they can also be factors in developing cognitive problems later in life, even among patients who have never experienced a stroke.

There has been a steady decline in the number of Americans with coronary heart disease in recent years, yet rates vary by race and ethnicity, and residents of some states have a risk that is more than double other geographic regions.

Working vigorously to reduce cardiovascular deaths, U.S. health officials have announced a national program that partners with private insurance companies to prevent one million heart attacks and strokes over five years.

Moderate lifestyle changes may seem small, but they can provide large returns in better health. Exercising and smoking cessation are among modifiable changes capable of reducing risk of Alzheimer's disease.