Idiopathic RBD is defined as a parasomnia characterised by recurrent dream enactment with loss of the atonia which is normally present during REM sleep.

特发性RBD的定义为深睡眠状态，其特征表现为反复做梦伴正常出现于快速动眼睡眠期的松弛缺损。

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Although we apparently have a need for REM sleep, judging from the fact that our bodies automatically compensate for a loss of it, what REM sleep actually does for us is not clear.

从我们的身体能够自动地对损失作出补偿这个事来看，尽管我们明显地需要REM Crapid eye movement睡眠，但REM睡眠对我们的身体有什么作用还不清楚。

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