According to Professor John Folts at the University of Wisconsin, Guinness beer reduces the risk of blood clots that cause heart attacks. Apparently, though, this effect is confined to darker beers. Heineken did not have the same effect.
I for one will have no trouble incoporating this new medical breakthrough into my daily health regimen.
I would, however, like to correct one piece of misinformation in the Independent's article:
Light-coloured beers, such as lagers, lacked the same health-giving punch.
There are many dark lagers, such as the delicious Dixie Blackened Voodoo Lager, which I unfortunately cannot seem to find in Memphis anymore.