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. E Cigarette Brands Are Skirting the Rules About Health Warning Labels on Instagram, Study Finds The Brink Boston University A Parent's Guide to Teens and Vaping Risks Renown Health UCLA study finds even short term vaping poses significant risk to health Daily Bruin Vaping It's No Smoke and Mirrors When it Comes to Urinary Health Issues The Urology Group Health Effects of Vaping