Your blood type could help you learn whether you face an increased risk for heart disease.
Researchers at the Harvard School of Public Health analyzed data collected from nearly 90,000 adults over a 20-year period.
They found those with type “A-B” blood had a 25 percent increased risk for heart disease.
Those with type "A" or type "B" blood also had an increased risk.
A majority of the population has type "O" blood and there was not a risk found among those patients.