E cigarettes: 'cancer risk close to zero' Bhekisisa Is Vaping Harmful? Side Effects, Health Risks, & Care Quelles sont les diffrences entre le tabac chauff IQOS et une cigarette conventionnelle? Is Heat Not Burn Safer Than Cigarettes? What the Difference Vaping has become common, but it's important to know what you're inhaling. Many e cigarettes contain nicotine, heavy metals like nickel and lead, and chemicals that can harm your lungs and overall health. While vaping is not risk free, it is less harmful than tobacco Our World in Data