The study examined 18 smokers with significant asthma who switched to electronic cigarettes. Ten of the patients switched completely and 8 became dual users (both smoking and using e-cigarettes). Among the dual users, the average cigarette consumption dropped from 22.4 to 3.9 cigarettes per day.

The harshest questioning came from Senators Richard Blumenthal, Barbara Boxer, and Jay Rockefeller:

The stark truth is, nicotine is one of the most additive substances there is, if not the most addictive substance in the world. It does not help that tobacco companies adds over 601 chemicals to tobacco to make them more addictive. It is extremely difficult to keep people from smoking once they start.

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