Health and Healthcare Systems
只需少量运动即可降低罹患乳腺癌的风险
锻炼对所有人都有益，但美国的一项新研究发现，肌肉收缩与乳腺癌发病率减少之间存在直接联系。研究人员解释道，通过运动，肌肉实际上会释放一些能抑制异常细胞生长的因子。但研究人员强调，目前还有很多研究工作要做，比方说确定锻炼对哪些癌症及其亚型有着最佳的干预作用。根据研究结论，建议普通人每周至少进行5次中等强度的锻炼，每次30分钟（与美国运动医学学院的建议一致）。
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