Study Reveals Cigarettes Are More Addictive Than Previously Thought Observer The Truth About E Cigarettes: What Parents, Teens & the Public Should Know Pine Rest Newsroom Nicotine in e cigarettes reduces NAD and SIRT1 levels in mice. No surprise. I once ordered a vial of nicotine (to test on SIRT1) and there was a big skull printed on the NEW: A third person has died from an e cigarette related lung illness and another death is under investigation, the Centers for Disease Control and Prevention said. https: abcn.ws 2knUziP