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Scientists are still determining how harmful e-cigarettes can be

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You should speak with a qualified professional if you are trying to quit smoking, feel dependent on nicotine, use both cigarettes and vapes, or have health concerns

In order to translate observed breathing patterns and smoking behavior into biological effects, we combined the small airway-on-a-chip with a smoking machine that burns cigarettes and a microrespirator that inhales and exhales small volumes of cigarette smoke and fresh air in and out of the epithelium-lined channel in programmable intervals mimicking true smoking behavior, said Richard Novak, a co-author of the study and a senior staff engineer at the Wyss Institute, who helped design the smoking instrument