Health Rounds: Researchers discover how severe flu damages the heart

(This is an excerpt of the Health Rounds newsletter, where we present latest medical studies on Tuesdays and Thursdays) Feb 11 () - Researchers believe they now understand how severe cases of influenza damage the heart, providing an explanation ‌for the annual uptick in heart attacks during flu season. “We have known for years that the frequency of heart attacks ‌increases during flu season, yet outside of clinical intuition, scant evidence exists of the underlying mechanisms of that phenomenon,