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

Keeping the heart healthy and "young" is crucial for maintaining overall well-being and reducing the risk of heart disease, ...

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 ...

Heart disease is the No. 1 cause of death in the United States. These are the steps you need to take to reduce your risk.

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 ...