"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Both running and swimming are great forms of cardio, engaging your muscles, boosting heart health, ...
Everyday Health on MSN

8 health benefits of swimming

From better heart health to improved mood, this water workout comes with plenty of advantages for well-being.
Researchers at the Intelligent Biomimetic Design Lab at Peking University have developed a bio-signal framework showing that fish muscles do far more than generate swimming motion. In a series of ...