Stop calling the evidence "mixed." A massive new overview from the University of Oxford has analyzed a decade of data and found a clear winner in the fight against smoking: nicotine e cigarettes. Most people use e cigarettes to help them quit smoking Office for National Statistics Chemical linked to 'popcorn lung' found in flavored e cigarette: study 2015 12 16 New research findings: E cigarettes may be more harmful than regular cigarettes Biostock Misconceptions about e cigarette safety might be stopping smokers using them to quit