@CNN: A condition known as black hairy tongue has been linked with certain medications, conditions and poor oral health. The name refers to tiny nubbins on the tongue, called papillae, that have grown longer and turned black. https://t.co/7VM9nsGQo0

@CNN: A condition known as black hairy tongue has been linked with certain medications, conditions and poor oral health. The name refers to tiny nubbins on the tongue, called papillae, that have grown longer and turned black. https://t.co/7VM9nsGQo0