Older users of e cigarettes at greater risk of respiratory illness, study suggests CUNY Graduate School of Public Health & Health Policy Q&A: Is vaping as addictive as cigarettes? MultiCare Vitals Vaping just once raises oxidative stress levels in nonsmokers, increasing disease risk UCLA E cigs have similar risks to cigs for some diseases and nearly as high for others. Dual use riskier than smoking alone Stanton Glantz blog