Nicotine is a fucking stimulant! It stimulates peristalsis (muscle contractions) in the digestive tract. At the same time it increases heart rate as well as constricts blood vessels, so...yeah...that pretty much explains it.
I had a really, really cool bio teacher in middle school!! I remember almost everything he ever said!! He got kinda over-excited talking about the whole digestion process, from mastication to defecation.
Is it normal to have the urge to defecate after a ...
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