The lake's location in the heart of the East Antarctic Ice Sheet makes it one of the most inhospitable environments on the planet.

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Alistair Wood of Vanderbilt University, who chaired the panel, joked that perhaps there should be new ads in which a famous figure skater with arthritis drops on the ice from a heart attack.

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When an ambulance carrying a patient in full cardiac arrest arrives, Oklahoma Heart's er workers apply ice packs.

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Most hospitals fill each bag with fluid to prevent the heart coming into direct contact with the ice.

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But it's in my heart, and every time I go on the ice I take it with me and say, 'You've got there and now you should enjoy it.

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Soon we were flying over the heart of the park, with nothing but snow and ice below.

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On that evening, in front of a prime time audience that learned of his heart-wrenching story, Te'o also hauled in an ill-advised Spartan lateral that helped ice the game.

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