Matters of the Heart: Risking it All for the Marathon | Active.com

Matters of the Heart: Risking it All for the Marathon | Active.com:

"It has become a known fact that family history and dietary habits play as critical a role--if not a greater role--in heart health than exercise.....

A recent study showed that while regular exercise does indeed benefit the heart, some experienced marathoners past the age of 50 had significant calcium deposits in their arteries, thus increasing their likelihood of suffering a heart attack. The recent heart trauma suffered by 1980s marathon star Alberto Salazar has been well documented, and highlights how even those with a history of elite fitness can be vulnerable."