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Most kids don't get enough sleep, and that may put them on a path to future heart trouble, a new study finds. 一项新的研究发现，大多数孩子睡眠不足，这可能会导致他们未来罹患心脏病。 Young teens who slept less than seven hours a night tended to have more body fat, elevated blood pressure and less healthy cholesterol levels -- all bad for the heart, researchers say. 研究人员称，每晚睡眠少于7小时的青少年身体脂肪多，血压高，胆固醇水平低--这些都对心脏有害。 Heart disease remains a leading killer, said lead researcher Elizabeth Cespedes Feliciano. She's a staff scientist with the Kaiser Permanente Northern California Division of Research in Oakland, Calif. 首席研究员伊丽莎白·塞斯佩德斯·费利西亚诺称，心脏病仍然是头号杀手。她是加州奥克兰凯泽北加州研究部的研究员。 | 
