See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. During pregnancy, the body goes through a remarkable transformation, so ...

A study of horses -- which share many important similarities with humans in their chromosomes and pregnancies -- revealed that 42% of miscarriages and spontaneous abortions in the first two months of ...

Scientists uncover how pregnancy transforms the brain, with gray matter changes that shape maternal instincts and well-being for the long haul. Study: Pregnancy entails a U-shaped trajectory in human ...

How did your heart form? What triggered your first heartbeat? To this day, the mechanisms of human heart development remain elusive. Researchers know the heart is the first organ to fully function in ...

When it’s time to bring new life into the world, the human body transforms itself in remarkable ways. The immune system, which usually fights off anything that reads as foreign, learns to chill out so ...

Pregnancy is an astounding feat of nature — yet the most remarkable changes aren’t even visible to the human eye, but take place within the body’s cells. During pregnancy, the body’s metabolic ...