And when the study subjects were getting less than six hours of sleep a night, their ghrelin levels rose from 75 nanograms per liter to 84 ng per liter.
当研究对象睡眠少于6小时，他们的饥饿激素水平从每升75毫微克上升到85毫微克。
According to the American Cancer Society, most men have levels under 4 nanograms per milliliter of blood (ng/ml).
根据美国癌症协会的说法，大多数男性PSA含量为4ng/ml。
Ng forecast investors would sell the metal at near-record levels, and pegged gold’s support for the week at $1,400.
荷兰银行估计投资者会在历史新高点附近卖出黄金，同时认为黄金本周的支撑位是1400美元。
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