[39] In general, though, paan is an occasional delicacy thoroughly enjoyed by many, and almost exclusively bought from street vendors instead of any preparations at home
However, epidemiological studies assessing Swedish smokeless tobacco, which exposes users to nicotine without combustion products, generally have not found an increased risk of myocardial infarction or stroke among users, but suggest that nicotine might contribute to acute cardiovascular events, especially in those with underlying coronary heart disease
Gilbert observed that everyday items, like leaves, bark, and wood, posed no harm on their own
I think in their desire to screw with the research that the University of California does that they have been fronting for big tobacco