If you ever find yourself in the first state in the Union for gambling, make sure you swing by Reno to pick up Chelsey Cornwall on your way to Vegas. Whatever your game, you're going to want her riding shotgun. All she's done her whole life is beat the odds. Even when they were stacked against her. But we'll get into that. Cornwall is a twin. That happens in about 32 of every 1,000 births. Moreover, she's an identical twin, which occur in about 4 out of every 1,000. She hit the jackpot with sister Emily. They grew up there in Reno with mom, dad and another sister. 'Childhood was great,' Cornwall said. 'Camping and skiing and going to (Lake Tahoe).' Charmed. But the next flip of a card — those vagaries of life — can mean the unlikeliest of risks change the hand you're holding. For the twins, that meant a congenital condition that impacts only about 1 out of very 5,000 people: Arrhythmogenic right ventricular cardiomyopathy. It's a mouthful. As Cornwall explains, it's when the 'right side of the heart is very enlarged and doesn't work. That puts a lot of pressure on the left side of our hearts and so those started to fail.' 'Our hearts.' Twins. And the hand they were holding? It had taken a turn.