Cardiology

Emotional stress may trigger heart attack

(Medical Xpress)—Heart attack survivors who live alone and people exposed to extreme stress from events such as natural disasters or sporting events are at greater risk of heart attack, according to a Heart Foundation study ...

Genetics

Researchers find genetic cues for a big heart

Bigger isn't always better, even when it comes to the body's most vital organs. An enlarged or thickened cardiac muscle can actually force the heart to work harder to pump blood throughout the body, weakening the organ until ...

Genetics

Gene 'switch' may explain DiGeorge syndrome severity

The discovery of a 'switch' that modifies a gene known to be essential for normal heart development could explain variations in the severity of birth defects in children with DiGeorge syndrome.

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