We identified many of the cancer-causing chemicals in cigarette smoke and coal tar – including the first pure carcinogen ever to be isolated We now know that exposure to certain chemicals, such as ...

"Nicotine and toxins in cigarettes affect bone health from many angles," Kaur says. Cigarette smoke generates huge amounts of free radicals -- molecules that attack and overwhelm the body's ...

June 10, 2025 — Scientists have discovered that people with COPD have lung cells that contain over three times as much soot-like carbon as those of smokers without the disease. These overloaded ...