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    "headline": "Training Rewires the Nerves Around the Heart",
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    "dek": "Exercise changed cardiac nerve structure as well as muscle performance in a new physiological study.",
    "summary": "Exercise changed cardiac nerve structure as well as muscle performance in a new physiological study.",
    "body_text": "Researchers report that exercise remodeled the nerves regulating the heart, adding a neural dimension to the familiar muscular effects of training. The finding could help explain individual differences in rhythm and recovery and may inform future arrhythmia research. It does not establish a personalized exercise prescription or a new therapy.",
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        "qualification": "It does not establish a personalized exercise prescription or a new therapy."
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    "tags": [
      "exercise",
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      "nerves",
      "arrhythmia"
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