For children with heart disease, exams using radiation allow doctors to see images of their hearts. But for some children, this exposure to radiation also might pose a risk for cancer later in life.

The Mediterranean diet, which consists largely of fruits, vegetables and olive oil, has been shown to boost heart health. Tomatoes, in particular, contain an ingredient that may help fight heart problems.

As people age, exercise is important for maintaining good health, including healthy cholesterol levels. Sometimes, though, medications are needed to cut cholesterol. Unfortunately, treatment with these medications might have an unintended consequence.

As smoking has begun to decline in some parts of the world, including the US, it is still increasing in other regions. A new study explored tobacco use in Asia.

Air pollution has been linked to a wide range of health problems, but it's not always clear what's directly related to specific air pollution measures.

High blood pressure is tied to greater risks of stroke and heart attack. But high blood pressure also may affect people in areas that may not seem so obvious, including their mental capabilities.

Coronary artery disease can be split into two separate categories: obstructive and non-obstructive, or high-risk and low-risk. New research suggests that this black and white view of the condition may be deadly. 

Diabetes increases risk for heart disease, so a heart attack might be reason to test for diabetes. But it seems a heart attack was not enough for many doctors to take that closer look for diabetes.

According to the so-called "obesity paradox", people who are overweight and have had a stroke have a better chance of surviving than their normal and underweight counterparts. However, some research is starting to debunk this idea.

What would it take to prevent one million heart attacks and strokes before 2017?