immobility

This is due to a stagnation of blood in the veins caused by prolonged immobility, which can promote blood clot formation in veins.

其原因是由于长时间不动，造成静脉血液停滞，促使静脉中血凝块形成。

If sleep paralysis is an example of too much immobility, so-called REMbehavior disorder is an example of too little.

如果睡眠瘫痪症是过于静止的例子，那么所谓快速眼动行为障碍就是一个太不安静的例子。