Your Toothbrush Has an Expiration Date

Warning: Your toothbrush has an expiration date and nobody told you about it. That colorful piece

of plastic sitting by your sink right now might be doing absolutely nothing for your teeth.

Dentists recommend replacing your toothbrush every three months but here's the wild part.

After just twelve weeks of use those bristles become completely useless. They fray and bend

in ways that make brushing feel productive when you're basically just tickling your teeth with worn

out plastic strands. The American Dental Association did studies showing that old toothbrushes

remove forty percent less plaque than new ones. You're literally working harder to

get worse results. It's like trying to sweep your floor with a broom that has half its bristles