Q&A

The nicotine in e-liquids is readily absorbed from the lungs into the bloodstream when a person vapes an e-cigarette. Upon entering the blood, nicotine stimulates the adrenal glands to release the hormone epinephrine (adrenaline). Epinephrine stimulates the central nervous system and increases blood......

Yes. Experts think that e-cigarettes are, based on what we know so far, less harmful than cigarettes. Smoking is associated with a number of very serious health risks to both the smoker and to others around them. So switching from tobacco to e-cigarettes substantially reduces a major health risk.

This is known as “dual use.” The dual use of e-cigarettes and tobacco cigarettes can lead to significant health risks because smoking any amount of regular cigarettes is very harmful. People should not use both products at the same time and are strongly encouraged to completely stop using all tobacc......

A growing body of evidence shows that smoking e-cigarettes, or vaping, may be even more dangerous than smoking cigarettes.

No matter how you inhale nicotine -- regular cigarette or e-cigarette -- it's still an addictive substance. Nicotine's pleasurable effects combined with its short half-life leave people feeling like they need another dose soon after the first one. This results in a vicious cycle of addiction.

E-cigarettes are not approved by the FDA as a quit smoking aid. So far, the research shows there is limited evidence that e-cigarettes are effective for helping smokers quit. There are other proven, safe, and effective methods for quitting smoking. One way to start is to talk with your doctor, nurse......