Scientists are warning that vaping may repeat the same public health mistake made with cigarettes. Early research now shows vapes can damage cells, cause inflammation, and are likely linked to lung and Chart: Teenagers Two to Three Times More Likely to Vape Than Smoke Statista Vaping vs Smoking vs IQOS: Which is Least Harmful? E Cigs & Oral Health: How Vaping Affects Gums & Teeth Vapes are more addictive than cigarettes.