Study: E cigarettes trigger inflammation in the gut Health We break down the key differences between traditional cigarettes and e cigarettescovering: 1 Their compositions and ingredients. 2 The health risks associated with both. 3 Nicotine levels and addiction potential. 4 The impact Vaping propylene glycol and vegetable glycerine may lead to lung inflammation Nearly $34 million worth of illegal e cigarettes seized by federal officials ABC News