Key points from article :
Test could help to explain why people with no conventional risk factors can still have a heart attack.
Genomic Risk Score (GRS) test would only cost £40.
Test looks for patterns of risky genes rather than a single inherited gene.
Test could be done with a simple mouth swab.
It could be the most cost-effective way for the future for detecting patients with heart attack risks.
Researchers from the Universities of Cambridge and Leicester and the Baker Heart and Diabetes Institute in Australia led the study.
Study was published in the Journal of the American College of Cardiology.
