E liquide E CG CigaretteElec WARNING E cigarettes with nicotine are highly addictive and are harmful to health. Some of their toxic substances are known to cause cancer increase the risk of heart and lung disorders. # E Cigarettes: Know the Health Risks Department of Health New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking Vaping vs. smoking: what are the risks? Pacific Life Re Vaping is often marketed as a safer alternative to smoking, but many vape products contain nicotine, harmful chemicals, and heavy metals that can harm developing brains and lungs.