The placenta contracts independently of the rest of the uterine wall, as seen in around 60% of 36 MRI-scanned healthy ...

Premature ventricular contractions (PVCs) are extra heartbeats that start in the lower part of the heart. Up to 75% of people experience PVCs without symptoms, and they’re usually no cause for concern ...

Childbirth depends not just on hormones, but on the uterus’s ability to sense physical force. Scientists found that pressure and stretch sensors in uterine muscles and surrounding nerves work together ...

Braxton Hicks contractions happen with all pregnancies to help your body prepare for labor. They might feel like a mild muscle spasm, tightening in your baby bump, or menstrual cramps. Not sure if you ...