What's Actually in Your Vape: A Complete Chemical Breakdown Vapes are less harmful than cigarettes, but they are not harmless and the long term health risks are unknown. Nicotine raises blood pressure and increases the heart rate, which can increase the risk WARNING FOR AND Illegal disposable e cigarettes (vapes) may be more dangerous than traditional cigarettes, according to new research from UC Davis. The study found hazardous levels of toxic heavy metals FDA move on flavored vapes sparks concern on toxicity, teen vaping The Health Risks Of E Cigarettes Versus Traditional Cigarettes Henry Ford Health Detroit, MI