The main concern regarding the use of electronic cigarettes is that no one knows what ingredients or chemicals are in them. It's difficult to decide if they are safer than cigarettes if one doesn't have enough information to compare the two. Although there have not been enough studies conducted to know exactly how many chemicals are in electronic cigarettes, there have been 42 identified (Harmful Chemicals in Electronic Cigarettes). Out of the 42 identified chemicals, there are certain ones that are especially harmful such as acetaldehyde, acetone, cadmium, lead, and nicotine (Harmful Chemicals in Electronic Cigarettes). Besides these dangerous chemicals, there are others that emit second-hand smoke.…