What We Don't Know about E-Cigs

What is a key difference between traditional cigarettes and e-cigarettes?

• Traditional cigarettes are battery-powered, while e-cigarettes are not.

• Traditional cigarettes burn tobacco, while e-cigarettes vaporize a liquid.

• E-cigarettes contain thousands of toxic compounds, while traditional cigarettes do not.

• E-cigarettes are designed to help people quit smoking, but traditional cigarettes are not.

Which of the following are common ingredients found in e-liquids?

• Tobacco, tar, and carbon monoxide

• Propylene glycol, artificial flavorings, and sometimes nicotine

• Diethylene glycol, formaldehyde, and metal particles

• Water, sugar, and natural fruit extracts

What potential health risk is associated with the heating coils in some e-cigarettes?

• The coils can explode if overheated.

• The coils can release tiny metal particles that may damage the lungs.

• The coils can cause the e-liquid to freeze.

• The coils can make the e-liquid taste bad.

Why is it difficult for scientists to study the long-term health effects of e-cigarettes?

• E-cigarettes are too expensive to study in large numbers.

• There are too many different types of e-cigarettes and e-liquids, making it hard to compare results.

• Scientists are not interested in studying e-cigarettes.

• The chemicals in e-cigarettes are too complex to analyze.