Answer:
It covers you, you lose it every day and you'd die without it.
What instrument can you hear but never see?
What has holes on each side, but can still can hold water?
When someone uses this acronym, you know you've got to pick up the pace
Sometimes you feel it weigh a ton. Yet it is nothing, but somehow still there. Makes you uncomfortable around anyone, But speak its name and it's gone.
Cycle Cycle Cycle.