Don't let the stylish designs and sweet flavors fool you; vaping can significantly increase your risk for serious respiratory and cardiovascular diseases, including: Chronic obstructive pulmonary disease Heart attacks and How Vape Juice Is Made? What Is Vaping? DYK? Vaping coats lungs with potentially harmful chemicals. This can include chemicals such as: Diacetyl: This food additive, used to deepen e cigarette flavors, is known to damage small passageways in the lungs.