When was the last time you cleaned your toothbrush? Cleaning your toothbrush probably isn’t at the top of your list of priorities, but it should be! Keeping the tool you use to clean your mouth clean ...

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Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. There are two types of ...

Add Yahoo as a preferred source to see more of our stories on Google. Cleaning your toothbrush is important. (Getty Images) Everyone (well, nearly everyone) would agree that brushing your teeth is a ...