Vaping was marketed as an avenue to quit smoking cigarettes. But some smokers are now just doing both, CDC study finds.

• A new CDC study found that some people have taken to smoking both cigarettes and vapes.
• Vapes were previously pitched as a way to switch or quit smoking cigarettes. 
• People who smoke both risk more "exposure to toxins and worse respiratory outcomes," the CDC said.

Why would you "pick your poison" when you can enjoy both? Poor health outcomes. That's why.

The Centers for Disease Control and Prevention is now warning people who smoke both vapes and cigarettes about the negative health effects.