A slice of watermelon is shown at the Gutierrez Produce stand at the Dallas Farmers Market, Tuesday, July 1, 2008, in Dallas. Watermelons contain an ingredient called citrulline that can trigger production of a compound that helps relax the body's blood vessels, similar to what happens when a man takes Viagra, said scientists in Texas. (AP Photo/Tony Gutierrez)
AP - A slice of cool, fresh watermelon is a juicy way to top off a Fourth of July cookout and one that researchers say has effects similar to Viagra but don't necessarily expect it to keep the fireworks all night long. |