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PMI also touts clean-up efforts but these efforts barely make a dent in the vast amounts of tobacco litter, given that with up to two-thirds of every smoked cigarette discarded onto the ground, 340 and 680 million kilograms of waste tobacco product litter the world each year

Although long-term users of ENDS products may show similar endothelial function compared to non-smokers, some studies suggest these endothelial changes as post-use effects ( 69 )

Its 2013

But once you develop something like chronic obstructive pulmonary disease (COPD), theres no going back

Research leans toward less harm, a plus if youre switching