Innovative Science News

1. Innovative Science News

2. Oct 19, 2026

Heart problems that babies are born with, called congenital heart defects, often begin developing early in pregnancy. Approximately three weeks after fertilization, the human heart is still a simple, straight tube of cells and, over the course of about five weeks, this tiny structure must undergo a remarkable transformation to reshape itself into the complex organ that eventually pumps blood throughout the body.