Study: Laughter opens up your blood vessels

August 29, 2011

Researchers at the University of Maryland in Baltimore found that when people watched a tense, sad movie, their blood vessels constricted. But when they watched something lighter and then laughed, the blood vessels opened up. This allows blood to flow more freely.

While this is a good thing, it may not prove laughing is going to save us from a heart attack. But what researchers do know is that easier blood flow can be a marker for a reduced risk of cardiac events.

The research was presented at a meeting of the European Society of Cardiology.

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