chewing tobacco facts Spit This! The Hazards of Smokeless 5 facts about chewing tobacco

66 One recent study showed that hypertensive people who smoked less than 20 pack-years (one pack-year is defined as 20 cigarettes smoked every day for one year) had a 19% increase in cardiovascular death compared with those who never smoked, and those who smoked more than 20 pack-years had a 33% increase in death risk from cardiovascular disease

The circuits involved in addiction are the: amygdala and hippocampus affected by fear, nucleus accumbens and the ventral pallidum which respond to rewards that increase dopamine, anterior cingulate gyrus and prefrontal cortex, responsible for cognitive control, downregulate control of the orbito-frontal cortex, and Orbito-frontal cortex evaluates the value of rewards and the decision to use a substance is given

Environmental health perspectives 111 , 455460 (2003)

HSV-1 is highly contagious and transmitted through contact with saliva, cold sores, and mucosal surfaces

It looks closer to steam now, but I want to add a bit more character

Verdugo P (1991) Mucin exocytosis