The world was truly shocked at the news of legendary pop idol Michael Jackson's death on Thursday of apparent (though as of yet unconfirmed) cardiac arrest.

Though a recent study showed that a first-time heart attack sufferer has a higher survival rate than in decades past, heart health is as important as ever.

With the heart particularly on our minds today at the death of the 50-year-old legend, here's information on keeping yourself heart healthy.

Also, more in new research:

Music Can Make the Heart Beat Faster

Global Efforts to Lower 'Bad' Cholesterol Working

Calling All Heart Patients