Reducing heart muscle response to calcium could decrease the risk of fatal arrhythmias after heart attacks.

The state of Michael Stanbery’s health was shocking.

A team led by Vanderbilt University investigators has discovered two new genes — both coding for the signaling protein calmodulin — associated with severe early-onset disorders of heart rhythm.

The main antioxidant compound in green tea increases contractile force in isolated heart cells, suggesting it may be useful in heart failure.

Females may be at higher risk of potentially fatal heart condition due to gender differences in a protein involved in the heart’s electrical activity.