生理学家发现，失去重力后身体会失去力量，这使得宇航员骨质疏松、肌肉松弛，心血管功能也相应退化。
One thing that physiologists have learned is that without gravity our bodies begin to lose strength, leaving astronauts with weakened bones, muscles and cardiovascular systems.
科学家在研究草原田鼠时，发现了血管加压素在长期恋爱关系中的作用。
It is an important controller of the kidney and its role in long-term relationships was discovered when scientists looked at the prairie vole.
西班牙马德里的国家心血管研究中心科学家研究了811个2003年到2009年因心脏病发作送到医院的患者。
Scientists at the National Centre of Cardiovascular Research in Madrid, Spain, studied 811 patients who were admitted to hospital with heart attacks between 2003 and 2009.
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