These habits and other factors: bad oral hygiene smoking or smoking drinking coffee or tea use of antibiotics (may disrupt the normal balance of bacteria in the mouth) dehydration medicines containing chemical bismuth (eg Pepto-Bismol for stomach uptake) do not produce enough saliva (use medication to prevent disease or saliva production) regularly use garbage containing peroxide, witch hazel or menthol To receive head and neck radiation therapy smoking or smoking drinking coffee or tea use of antibiotics (may disrupt the normal balance of bacteria in the mouth) dehydration medicines containing chemical bismuth (eg Pepto-Bismol for stomach uptake) do not produce enough saliva (use medication to prevent disease or saliva production) regularly use garbage containing peroxide, witch hazel or menthol To receive head and neck radiation therapy Apart from these, black hairy tongue is more common to men, to those who use intravenous medication, and to those who are HIV positive

8 Factors that Are Contributing to Your High Blood Pressure Blood pressure refers to the internal force that your blood exerts on your blood vessels as it travels through your body
New Democrat France Gelinas has urged the province to pass legislation outlawing all flavoured tobacco products in Ontario, including menthol cigarettes
"Prisoner of Conscience" Archived January 16, 2008, at the Wayback Machine Vanity Fair , February 2007
Cherry smoke is an exeption