The placenta has long been thought to produce serotonin during pregnancy. But in a new study, Yale researchers shatter the deep-rooted hypothesis — and show that the placenta doesn’t produce serotonin ...

The placenta never fails to amaze. The conventions that we take for granted as required for the normal formation and function of other organs are often flouted by placental trophoblasts, the ...

The placenta is a pancake-shaped organ that develops within the wall of your uterus and connects to your baby though the umbilical cord. By the end of pregnancy, it grows to be about 9 inches in ...

If you're pregnant, you might wonder what the placenta does and what factors can affect it. Get the facts about this important organ that joins the mother and baby. What does the placenta do? The ...

The placenta is an organ that grows in the womb during pregnancy. Placental insufficiency (also called placental dysfunction or uteroplacental vascular insufficiency) is an uncommon but serious ...

The placenta grows and changes shape throughout your pregnancy. Any vaginal bleeding, abdominal pain, or back pain may indicate a more serious issue that your doctor needs to address. Share on ...

This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they ...

The placenta has long been thought to produce serotonin during pregnancy. But in a new study, Yale researchers shatter the deep-rooted hypothesis—and show that the placenta doesn't produce serotonin ...