"Scientists have worked out how caffeine might protect against certain skin cancers – a finding that could lead to better sunscreens. The research, conducted in mice, suggests that caffeine changes the activity of a gene involved in the destruction of cells that have DNA damage and are therefore more likely to become cancerous. The scientists said this may lead to new ways of preventing skin cancer, though other experts cautioned that it did not mean coffee lovers were better protected against the disease." READ MORE

Good news from Israel (I know, I don't think I've ever typed those words in that order before): "Consuming the equivalent amount of caffeine found in three cups of coffee is good for the circulatory system and protects against heart attacks, researchers at the Sheba Medical Center have found.... The study found that caffeine consumption improves the functioning of the endothelium [the layer of cells inside blood vessels and the heart] by 30 percent, reduces by 40 percent the C-reactive (CRP ) protein in the body , a leading predictor of heart attacks and stroke, and increases by 25 percent the amount of adiponectin, a protein which prevents heart attacks and strokes."

The amount of caffeine in half a can of Red Bull is about as much as you should drink if you want to be focused. After that you start to get stupid, says Science.