Q: My husband has been puffing on e-cigarettes for over a year, and he's pretty much given up tobacco. I'm grateful, but I'd like him to give up the gadget, too. Can you give me some ammunition? — Audrey S., Saugerties, N.Y. A: Absolutely. E-cigarettes are not harmless, although they are currently unregulated. Different brands and types of e-cigs contain varying levels of toxins. A new study for the Japanese Ministry of Health found that some e-cig vapors contained 10 times more formaldehyde than regular tobacco smoke, and formaldehyde is a very potent carcinogen. Puffing a lot on the device can overwork the heating element, releasing additional toxins (there even have been reports of e-cig... [Read more]