Get to know the functions of your heart, blood vessels, and blood itself and how they work together to maintain your health.

Using single cell technology, a new study sheds light on the significance of genetic risk factors for, and the diversity of cells involved in, the development of coronary artery disease. The ...

Just like other organs, the heart can age with time. Your heart age gives you an idea of how healthy your heart is. As we age ...

Jack Knudson is an assistant editor for Discover Magazine who writes articles on space, ancient humans, animals, and sustainability, and manages the Planet Earth column of the print issue. View Full ...