Heart rates can be determined by the amount of physical activity your body is engaging in. The more physically active you are, the faster your heart beats. You can measure the rate your heart is beating by taking your pulse. This science...

Thorough overview of hypertension. Includes information on symptoms, treatment, prevention, and much more.

Read a general overview of heart attacks and heart pain, including angina. Content includes information on the difference between stable and unstable angina, and the symptoms of a heart attack.

Overview of the cardiovascular system with labeled diagrams and reviews of the heart, torso, arm, leg, and blood, available through the links on the right.

Learn about all aspects of obesity and being overweight! Click on the main topics along the menu bar to access detailed facts ..including causes, risks, who is at risk, symptoms, diagnosis, treatment, prevention. Links to related sites...

Teenagers often dedicate themselves emotionally to a relationship to a great degree and coping with loss can be quite difficult. This site provides insight for teens on how to manage these feelings and move towards the future. Links to...

A wealth of information on arrhythmias. Find out about the kinds of arrhythmias, causes, and treatments.

This resource presents brief information defining a heart attack. The article also contains many links to related topics and publications in English and Spanish.

One-page article with a complete overview of the importance of good nutrition in reducing your risk for health problems, including facts on nutrients, vitamins, body mass, snacking tips, and ChooseMyPlate.

This site discusses congestive heart failure, different medicines used to treat it, and surgical procedures which may be necessary.

Labeled diagram of the heart valves shows how blood flows through the heart with useful information on causes, symptoms. diagnosis, and treatment of valve disease when this blood flow is disrupted.

One-page overview of pacemakers includes detailed labeled diagrams of the heart and implantable pacemaker along with essential information on how to live with one.

Answers questions about blood: what it is, its function, and types.

One-page article with a complete overview of coronary artery disease (CAD), including diagrams, causes, risk factors, symptoms, diagnosis, and treatment.

One-page article with useful information on carotid artery disease, including diagrams, causes, risk factors, symptoms, diagnosis, and treatment.

The circulatory system and how it functions are explained. An interactive diagram shows how blood flows through the heart. Disorders of the heart and the circulatory system are also described.

One-page article with a complete overview of peripheral vascular disease (PVD) and all the different conditions this disease may lead to, including diagrams, causes, risk factors, symptoms, diagnosis, and treatment.

One-page article answers questions about heart disease risk factors in children and teenagers including high blood pressure, cholesterol, smoking, obesity, and physical inactivity.

The one-page article answers questions about aneurysms and dissections: causes, symptoms, risk factors, and treatment.

How can vitamin C help prevent heart problems and improve the health of those who already have vascular disease? Which animals are unable to produce their own vitamin C? How does vitamin C deficiency affect the body? Learn the answers to...

One-page article answers key questions about heart attacks: causes, symptoms, diagnosis, and treatment.

One-page overview containing a detailed labeled diagram of the anatomy of the heart including the valves, conduction system, and circulatory system.

Will wearing shoes help a baby walk sooner? Does caffeine stunt a child's growth? Does chocolate cause acne? Find old wives' tales about pregnancy, infants, food, coffee, and illness, and answers to the above questions.

In this lesson plan site, the students will learn about the circulatory system and perform an experiment where they take their pulse after various activities.