Hormonal changes in pregnancy loosen your joints and the ligaments that attach your pelvic bones to your spine. This can make you feel less stable and cause pain when you walk, stand, sit for long periods, roll over in bed, get out of a low chair or the tub, bend, or lift things.

BabyCenter. My question is, why didn’t they just shorten it to, “…and cause pain whenever you are conscious”?