E cigarettes vs. Traditional Cigarettes: What are the Health Risks? The Sparman Clinic Are e cigarettes less harmful than traditional cigarettes for male fertility in the context of IVF? gametia.com What Does Vaping Do to Your Lungs? Johns Hopkins Medicine Research so far shows that legal e cigarettes are far less harmful than smoking, and can be an effective way of helping people who smoke to quit. However, there isn't enough research yet