Everyone seems to have tight hips these days. It makes sense—spending a lot of time sitting keeps the hip flexors in a shortened position more than they should be. Constricting the muscles in this way can make them super tight, especially if you're not incorporating hip stretches into your routine.Of course, you know what it feels like to have a tight muscle. But tight hips aren't just uncomfortable—they can lead to all sorts of other aches and pains, especially in the lower back.