The smoke of any kind can be very dangerous for the alveoli, which is a very critical part of the lung
Former smokers who had turned to vaping for at least six months were tested against those using NRT [nicotine replacement therapy patches etc] smokers and dual users of both NRT and e-cigarettes
Vaping IS Much Less Harmful Than Smoking Using the findings from a study published in the British Medial Journal [BMJ] titled: Comparing the cancer potencies of emissions from vapourised nicotine products including e-cigarettes with those of tobacco smoke CRUK says: Scientists analyzed the chemicals released from tobacco cigarettes and e-cigarettes, and estimated that the lifetime cancer risk for e-cigarette use could be 100 times lower than that of smoking
When attempting to stop, smokers may experience withdrawal, which can lead to a depressed mood, anxiety, difficulty concentrating, feelings of hunger, and trouble sleeping
Tobacco Industry Research Committee, New York, NY