Explores the structure of the heart and how the circulatory system transports essential substances to the cells all over our bodies. Also explains the different illnesses or conditions that can affect the heart and blood, from anemia to heart attacks, and outlines ways that we can keep our hearts and blood circulations healthy.

Includes index and glossary.

The heart and circulatory system -- The heart -- Blood vessels -- Heart function -- Healthy heart -- Heart attack -- Heart monitoring -- Heart surgery -- Pacemakers -- Faulty valves -- Heart transplant -- Problems with arteries -- Problems with veins -- Blood pressure -- Blood -- Blood groups and blood transfusions -- Blood donors -- Hemophilia -- Blood disorders -- Sickle-cell anemia -- What can go wrong with my heart and blood?