The little magnets sure make the iPad's Smart Covers useful — but they could switch off pacemakers, too, if a new series of experiments is anything to go by. Read More >>

Have you ever wondered how many heartbeats an average person has in their lifetime? What about for cats or dogs or other animals? Turns out because of metabolic rates and size of different species, each animal gets around a billion beats. Read More >>

Discover Magazine has an amazing story about how a woman needed to be carried upside down in order to stay alive. It sounds crazy but it's real. The reason she had to be held upside down was because her pacemaker had become disconnected from her heart and holding her upside down led the pacemaker to be reconnected. Read More >>

Over the past few decades, scientists have suggested that high levels of HDL—which has come to be known as "good cholesterol"—can reduce the risk of heart attack. New evidence, however, suggests that might not be the case after all. Read More >>

There could be a path to a simpler recovery after a heart attack. Duke University Medical Centre scientists have discovered a way to turn the scar tissue that forms after cardiac arrest into healthy muscle tissue, which would make a stem cell transplant unnecessary. Read More >>

A technology in the works might soon allow you to unlock your hard drive by simply touching your keyboard. Your unique heartbeat, emitted through your fingertip, would be your password. Read More >>

While Viagra makes cavernous tissue hard, scientists at the Ruhr Universitat in Bochum, Germany, have now discovered that it can save lives too by causing the opposite effect: Viagra makes some heart muscles less stiff. Read More >>