Young vapers perform worse than non vapers in exercise testing, research finds Secondhand smoke and secondhand aerosol Vaping 'barbecues your lungs' warns doctor who says it's 'worse than smoking' The Mirror Vaping or Cigarettes: What's Better for You? Early research says secondhand smoke from vaping may not be as bad as cigarettes, but it's still not harmless. https: fox59.com news national world does vaping cause secondhand smoke doctors explain the side effects