The net public health impact of ANDS will be a complex interaction of many factors at multiple levels of influence
Several scientific studies have highlighted a worsening of respiratory symptoms among some regular users of electronic cigarettes, particularly in individuals who already suffer from lung conditions
The lawsuits claimed individuals became addicted to e-cigarettes
Suitable for pumps, coolers, LED strips, routers, car accessories, DIY electronics
Since some tobacco products are banned in Brazil, this allowed the researchers to clearly distinguish between licit and illicit products: They estimate between 22% and 37% of their sample was either smuggled in or produced illegally
That is, when there is inadequate or early knowledge, public health decisions should be made on the basis of precaution to prevent harm, rather than on certain risk