Humans develop sharp vision during early fetal development thanks to an interplay between a vitamin A derivative and thyroid hormones in the retina, Johns Hopkins University scientists have found. The ...

The New Hampshire Senate passed a bill Thursday to require health classes to show students certain early fetal development videos. Under HB 667, the videos should be “high-quality computer-generated ...

Week 3 of pregnancy marks a crucial phase when your baby’s genetic blueprint begins to guide development. Although DNA is formed at fertilisation, this week is when genetic instructions actively ...

Maternal stress could leave epigenetic imprints on genes in the placenta associated with cortisol -- a necessary hormone for fetal development -- and this would affect the baby's development from very ...

Progesterone is normally released by the ovaries, but shifts to the placenta during pregnancy. The corpus luteum continues to release hormones until the placenta takes over after 10-12 weeks. The role ...