Exposure to alcohol during the first weeks of embryonic development changes gene activity and cellular metabolism. In laboratory cultures, it was found that the first cells of the nervous system are ...
Miscarriage is often framed as a sudden, inexplicable loss that strikes in the first weeks of a wanted pregnancy. Yet a ...
During the first weeks of pregnancy, the developing placenta in a mother's womb undergoes a dramatic change. Individual cells merge, forming a continuous barrier that will spend the next nine months ...