What is Vape Juice? E Cigarette Direct 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 Vaping vs. smoking for singers which is safer for your voice? Short answer: neither. Smoking exposes your voice to heat and combustion toxins. Vaping exposes it to chemical aerosols that dehydrate and Nicotine, propylene glycol, sweet flavorings, and various toxic chemicals like carcinogens and heavy metals are found in vape juice, posing health risks, especially to youth.