The Heart: An Online Exploration



From the moment it begins beating until the moment it stops, the human heart works
tirelessly. In an average lifetime, the heart beats more than two and a half billion times,
without ever pausing to rest. Like a pumping machine, the heart provides the power needed
for life.

This life-sustaining power has, throughout time, caused an air of mystery to surround the
heart. Modern technology has removed much of the mystery, but there is still an air of
fascination and curiosity.

Explore the heart. Discover the complexities of its development and structure. Follow the
blood through the blood vessels. Wander through the weblike body systems. Learn how to
have a healthy heart and how to monitor your heart's health. Look back at the history of
heart science.

Soon, your fascination and curiosity may lead to understanding and respect.