Childbirth depends not just on hormones, but on the uterus’s ability to sense physical force. Scientists found that pressure ...

You've made it through nine(ish) months of pregnancy, and now the big day has arrived: Your baby's birthday! You might be eager to take on the stages of labor, or you may be nervous about what's to ...

Your cervix doesn’t open in a single, smooth motion. It softens, shortens, and dilates under the rhythm of contractions. At 9 cm, most of that work is done, but a thin lip of tissue still remains, ...