How bad is vaping and should it be banned? No, vapes aren't 95% less harmful than cigarettes. Here's how this decade old myth took off Vapes might be less harmful than traditional cigarettes and might help smokers quit smoking, but they are not safe, especially for individuals younger than 25 years old. Plus, much is still unknown If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs. New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking