Moreover, after crossing out genetic modifiers accumulated over many generations, other Shaker alleles also become short sleepers and fail to complement the mns phenotype.

• 但并不代表说睡眠就可以不要。因为睡眠的过程实际上是复杂的，而且有用的，如睡眠中保证记忆永久存储所必需，睡眠对免疫系统关系也十分大。