The study titled, The Effect of Faith-based Smoking Cessation Intervention during Ramadan among Malay Smokers, can be found online in the Qatar Medical Journal, one of many peer-reviewed, open access journals published by HBKU Press and hosted on QScience.com.
Respiratory irritation and the bronchial constriction from a propylene glycol aerosol raise concerns about harm to people with asthma and chronic obstructive pulmonary disease, but one small study reports no harm but rather benefit when users quit smoking or smoke fewer cigarettes per day. Keep in mind, however, that the research here is still early, and this conclusion on e-cigarettes could change once tens of thousands of people and not just dozens or hundreds have been studied
It's another perverse result of the 1998 settlement that had tobacco companies--and, ultimately, their customers--chipping in to balance state budgets and pay for lawyers' yachts
Instead of burning hot and fast, your joint burns slower and tastes fuller