骨质密度全称“骨骼矿物质密度”，是骨骼强度的一个主要指标，以每平方厘米克(g/cm2)表示。
不过科学家们警告，皮肤皱纹越多的女性更容易出现骨质密度过低的情况。
But now scientists have warned women with wrinklier skin are more likely to have brittle bones.
已证实，力量训练能增大骨质密度，增加瘦肌体积，改善姿势，减少损伤的风险。
Strength training has been proven to increase bone density, increase lean muscle mass, improve posture, and reduce the risk of injury.
不过还有一些好的消息要告诉大家，在不久的将来，诊断骨质密度过低可能只需简单的看看某人的面容。
But there is some good news, too. In the future, diagnosing brittle bones could be as simple as looking someone in the face.
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