With more than 7,000 chemicals in cigarette smoke—over 70 of which are linked to cancer—it comes as no surprise that cigarettes contain harmful chemicals that cause death and disease. But where do these toxic chemicals come from? And why are there so many?

The FDA has released a series of videos and new web content to help consumers understand more about these chemicals, described in three stages “from plant to product to puff.” Go to the link above to see the videos and content.