"If I let my stress and my emotions get out of control there’s no doubt it could happen again."Craig Duncan didn’t believe his doctor when he was told he’d had a heart attack and was lucky to be alive. The 43-year-old is a leading sports scientist, who works with elite Australian athletes. He was in peak physical fitness. He ran regularly. He was vegetarian and did not have high blood pressure or high cholesterol. But Craig had suffered a Spontaneous Coronary Artery Dissection. "When I looked up the literature – there had only been a hundred and fifty cases reported and the majority of these were an autopsy." At the time of his heart attack Craig was under enormous pressure in his work and personal life. I was under enormous stress and I had been for a long, long time. A lot of it was self-imposed and just rushing around at a million miles an hour.