Turns out a single smoke can harm your body in ways incomprehensible to people. While we all are aware that smoking kills the health risks just one single cigarette poses to your body has been brought to light by a new study.The researchers analysed 141 cigarette-smoking related studies and crunched the number of cigarettes people smoke and their subsequent health risks. It was discovered that the people who lit just one fag a day are 74 percent more likely to develop coronary heart disease than the people who do not smoke at all. Incidentally people who smoke 20 cigarettes a