Caffeine is one of the most widely used drugs in the world. The Red Bull girls kicking around uni are great but do they don’t really need to work that hard to sell students caffeine. It’s almost a degree requirement to maintain a healthy caffeine addiction these days. And don’t forget tea. There is nothing more British than sitting down in front of Countdown with a nice cuppa and a couple of biscuits. If you are not a tea lover (heresy) every coffee shop is jumping to sell you caffeine in the disguise of mochas, frappes and skinny lattes. A caffeine pick me up is never far to be found but is all that caffeine good for you? It may keep you awake during a boring lecture or help you push through the last two hours of writing that essay at 4 am but what are the long term effects of caffeine on the body? Dr. Wellgood is here to give you the lowdown.