A novel research has unveiled that African-Americans are at more risk in comparison to whites to suffer from sudden cardiac arrest. It has been found that blacks face more severe heart disease than whites.

For now, the exact reason for the same is not known. Sudden cardiac arrest can take place due to heart attacks, but there are other reasons as well like irregular heart beat and electrical disturbances.

The research has been based on the assessment of more than 100 blacks and 1,200 whites who have suffered heart attack in the Portland area. Upon assessment, it was found that on an average, blacks were six years younger than whites when the incidents happened.

It has also been found that blacks are also more vulnerable to have other diseases like diabetes, high blood pressure and kidney disease.

Study's lead researcher Kyndaron Reinier of the Cedars-Sinai Heart Institute, said, "It could be due to the higher burden of illnesses that increase risk of heart disease, like hypertension and diabetes. Or it could be genetic because we know that certain health conditions are more prevalent in particular groups of people".

Reinier said that other reason could be environmental. But it can also not be ignored that there are differences between races when it comes to clinical outcomes. The study published in the journal Circulation is an addition to already growing number of research papers that show US blacks are more likely than whites to suffer from severe problems.