E Cigarettes and Juuling: Teen Use Reaching "Epidemic Proportions" Staying Healthy One e cigarette with nicotine leads to adrenaline changes in nonsmokers' hearts UCLA E Cigarettes and Juuling: Teen Use Reaching "Epidemic Proportions" Staying Healthy Pod based e cigarettes may foster greater nicotine dependence Harvard Gazette Combining electronic cigarettes and counseling helps more smokers quit Harvard Health Texas Sheriffs Mull Selling E Cigarettes to Inmates The New York Times