Particulate which is caught by mucus in your lungs, however, stays there for a quite a long time. And there is a significant risk of developing infections, and complications from them such as COPD.
Which is why unfiltered/cigar smokers and people who work in environments with "dirty" air (carpenter's shops, for instance) have a greater rate of lung infections than your average desk jockey who smokes filters.
Coffee grinds strike me as something which will smolder and break apart as it's smoked, and you're pulling all that into your lungs.
--------------------------------------------------------------------------- In the end they will lay their freedom at our feet and say to us, 'Make us your slaves, but feed us.'
Its more the habit of having the cigarette and inhaling the smoke which is addicting as opposed to the actual nicotine...that's why those nicotine patches are ineffective more a lot of people.
I heard a good method is to couple the nicotine patches with the "habit"...take something like a straw cut in half. Whenever you have the urge to smoke, or whenever you are supposed to apply the patch, add the straw and pretend it is a cigarette.
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