There isn’t much research on those of us who bum a cigarette every so often, but here’s what we do know: Cigarettes are still ...

Among the 7,000 or so different chemicals in cigarette smoke, more than 70 are known to be carcinogens. Most carcinogens promote cancer by damaging DNA and causing mutations. Illustration by Wenjing ...

Cigarettes contain hundreds of chemical additives to preserve flavor and enhance nicotine absorption. Many of these chemicals can cause cancer. Nicotine and tobacco are the primary ingredients most ...