Dr Muredach Reilly, the lead researcher, says this knowledge may help to develop new therapies for people at risk of heart attacks.
Ok, so we know Joe Alwyn is dating Taylor Swift so that will catapult him to superstardom, but we're still quite excited by this hot British actor.
Playing Rory Gilmore and Jess Mariano, respectively, Alexis Bledel and Milo Ventimiglia were each other's love interests on and off the set for a stretch.
PHOTOS: Celebs show off their engagement rings But the duo waited until February 2009 to debut their real-life romance -- a delay that was "very intentional on both our parts," British actor Moyer explained at the time.
"It was very important to me that the cast and crew we were working with didn't feel it was fickle....
Slattery and Balsam were married in 1998 and, despite their characters' conflicts, seem anything but "Mad" off-camera.
Mila Kunis and Ashton Kutcher ("That '70s Show") On the show: Kunis' Jackie Burkhart and Kutcher's Michael Kelso shared a natural chemistry on the sitcom.
Their research, to be published in The Lancet, found that most people who have a gene called Adamts7 face a significantly raised risk of suffering a heart attack.
But in people with blood group O who have the Adamts7, there is no raised risk.
RELATED: These 9 celebrity couples shared on-screen romance in films Their real-life 2006 breakup, however, may require them to keep things professional should Ventimiglia return for the show's Netflix limited revival, because Bledel wound up marrying another on-screen beau.