As the scientist in the family, Steve Scott takes on a new role when his dad must undergo heart surgery.
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At age nine, Anicca Harriot plans to study both the heart and space, but as she gets older, that plan becomes more challenging than she expected.
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Skylar Bayer's dreams of a career in scientific scuba diving are put in jeopardy when her heart begins acting strangely.
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When he begins showing strange symptoms on a jog though the mountains, science writer Andrew Revkin discovers just how close to death he is.
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