The Science Siblings are celebrating Heart Month with some facts and a DIY model. “For example, the size of your heart is about the same size as your fist. And also, the average heart weighs between ...

An engineer has created a 3D model of the human heart, inspired by his daughter’s heart condition, with the goal of creating a library of virtual hearts for researchers to use whenever they want.

Scientists have created a three-dimensional "heart-on-a-chip" (HOC) model that beats on its own, uses calcium to initiate muscular activity and responds predictably to common drugs in hopes that it wi ...