
How Your Education Level May Be Linked to Your Risk of Heart Disease
People who do not finish high school are more likely to develop heart disease later in life than those who complete graduate school, a new study finds.
Inside your body there’s a bustling highway with your beating heart at the center. Learn all about your body’s 60,000 miles of microscopic blood vessels, 5 to 6 quarts of blood, and the sundry passengers (lymph, blood cells, nutrients and more) that ride it every day.
Related Topics: Respiratory System, Immune System, Lymphatic System, Nervous System