On the up and up

Watermelon has long been a summertime favourite here in Australia, but who knew it could have something besides cooling and refreshing properties? News from Texas today is that watermelon, when consumed in large quantities, can have similar effects to Viagra. It's because it contains cirtruline, which can trigger production of arginine, a compound that helps relax the body's blood vessels a la Viagra. But, even if you're not after the uplifting effect, it's still worth tucking into the watermelon because (a) it tastes good, and (b) it's good for you: the arginine has a positive effect on the heart, circulatory and immune systems. If the share market here hadn't taken a $29bn plunge yesterday, one could almost be tempted to invest in watermelon - once this news get's out, chances are there could be more interest in it.