In a study, led by the University of Oxford in England, participants whose blood contained high levels of neuropeptide Y – a protein – were 50 percent more likely to die from a heart complication over three years than those with lower levels. Heart Failure occurs when the heart can't pump blood around the body.

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While there's no cure, treatments are available, including having an implantable cardioverter defibrillator fitted.

Scientists hope the test will be available within five years. Further research is planned.