A Trusted Friend in a Complicated World

Cathy Garrard

Cathy Garrard is a lifestyle writer and editor who covers a broad range of topics including nutrition, health news, beauty and celebrities. She is also a gardening enthusiast, a bicycle lover and an adjunct instructor at NYU who teaches classes on fact-checking and media literacy.
close up on old worn toothbrush with curled bristles

This Is How Often You Should Be Changing Your Toothbrush

Because cleaning your teeth and gums isn't as effective with worn bristles, it's time to learn how often you should change your toothbrush