Sleep helps my immune system fight off germs.

Meaning: It means that sleep strengthens my body's ability to resist and fight off illnesses.

Choice of Words: Immune system is the body's defense system against harmful substances like germs. Fight off means to resist or defend against an attack. "Sleep helps my immune system fight off germs" means that when I sleep, my body is better able to resist and fight off infections.

Alternative Expressions

Related Expressions