A simple and cost-effective blood test will be able to indicate about the total lifespan of person. The test will also be help in indicating about who is at higher risk of having heart disease.

The study has been carried out by a group of researchers from the Intermountain Medical Center Heart Institute in Murray. They have joined hands with Brigham and Women's Hospital in Boston in order to conduct the study.

Study researchers from both the institutes have used the complete blood count (CBC) risk score to know about the expectant lifespan and risk of heart problems. The CBC is able to indicate extract all the information from the normal blood test.

Lead researcher Benjamin Horne from the Intermountain Medical Center Heart Institute has affirmed that the CBC has been used for past many years by physicians. But it can be said that they were not able to know all its components in order to predict total lifespan.

"Physicians can now provide better care using the CBC risk score as a standard method to assess whether patients may have future health problems that lead to death", said Horne.

In order to reach at the above given result, study researchers have looked at more than 17,000 people in 26 countries.