Can drinking coffee make you live longer?

Dr Marc Gunter from the International Agency for Research on Cancer has studied the effect of coffee on thousands of people. He claims that enjoying three cups a day can extend your lifespan. It seems it's not the caffeine that's responsible, so whether your drink of choice is a triple shot espresso, a latte or even a decaf, you could end up living longer.

Some experts disagree though, saying that other factors which go alongside coffee consumption, like wealth, could be having an impact.