One thing that physiologists have learned is that without gravity our bodies begin to lose strength, leaving astronauts with weakened bones, muscles and cardiovascularsystems.
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。
2
The results showed that the overload training had enormous effects on cardiovascularsystems of rats.
结果表明，超负荷训练对大鼠的心血管系统影响较大。
3
It lets the devils out. Before they wreak all kind of havoc with the nervous and cardiovascularsystems.