Every womb is a battlefield. There’s a tug of war happening whenever a fetus is developing, as the baby needs nutrients from the mother to grow. But the mother needs enough nutrients in her system for ...

A sibling can change your life — potentially even before birth. The sex of one fetus can affect its neighbors in the womb. The "intrauterine position effect" was first discovered in cattle farming. A ...

Researchers at the University of Colorado Anschutz Medical Campus have found that vaping nicotine during pregnancy may be no safer for a developing fetus than smoking cigarettes. The study suggests ...

Using alcohol, tobacco, marijuana or other substances during pregnancy can harm the developing fetus, even when the risks are not always obvious, a West Virginia University psychiatrist warns. "Many ...

In rare cases, a woman’s heart can start to fail in the months before or after giving birth. The all-important muscle weakens as its chambers enlarge, reducing the amount of blood pumped with each ...