Love is in the air for many this Valentine's Day.  So, how does it impact your body's chemistry?

FOX's Colleen Cappon has the answer in today's edition of Housecall for Health:

A racing pulse and weak knees are more than just a metaphor for love.  Researchers from Rutgers University say there's a science to how love impacts our bodies.  The chemical oxytocin is what causes couples to want physical intimacy like kissing. Tongue tied?  The stress hormone norepinephrine increases heart rate and can cause sweaty palms, dry mouth, and fumbling words when that special person notices you.

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Housecall for health.  I'm Colleen Cappon, FOX News Radio.