Levels that low drastically weaken your muscles and bones and even changes how your heart and nervous system function.

低水平会大大削弱您的肌肉和骨骼，甚至会改变您的心脏和神经系统的功能。

Gravity is another problem. The moon's gravity is one-sixth that of Earth's. Levels that low drastically weaken your muscles and bones and even changes how your heart and nervous system function.

重力是另一个问题。月球的引力是地球的六分之一。低水平会大大削弱您的肌肉和骨骼，甚至会改变您的心脏和神经系统的功能。