A letter published in the New England Journal of Medicine claims that vapour produced by electronic cigarettes contains a high concentration of formaldehyde, a known carcinogen. But don't panic quite yet.
Cigarettes that heat tobacco to produce an inhalable aerosol, but never reach the point of combustion, thus avoiding that sketchy part of smoking where you light something on fire and suck the smoke into your lungs.
If you've ever chastised a friend for their gnarly smoking habit, you know that scolding does absolutely nothing. Making people feel bad about smoking just makes them want to smoke in secret. Well, here's an idea: What if it was your lighter making you feel bad about smoking. You can't run away from your lighter, right?