The reporting of profitability involves two things: the amount that was earned (revenues) and the expenses necessary to earn the revenues. As you will see next, the term revenues is not the same as receipts, and the term expenses involves more than just writing a check to pay a bill.
Smoking or chewing tobacco & poor oral hygiene may contribute to the formation of a black hairy tongue. Hair does not actually grow on your tongue but gives that appearance to some degree as the filiform papillae of your tongue elongate . The use of a tongue blade daily may prevent, eliminate or control this issue. Chewing tobacco can also cause cancer which is more serious! In brief: May contribute to.
I posted a while back looking for help with Hairy Tongue. Several more months have passed and I still have hairy tongue. It started almost a year ago when I took a 1 week course of Metronodizole (Flagyl). The antibiotic did its job but caused this condition called hairy tongue as a side effect that seems permanent. My tongue looks like it has a white coating of thousands of little elongate papillae. Almost like my once healthy pink tonge now has a 1970's shag-carpet growing on it.