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How often should I change my toothbrush?

If you've ever wondered how often you should change your toothbrush, it may be more often than you think.

Oct 18, 2023 (01:08)

Massachusetts election candidates hit campaign trail on first day of early voting

Massachusetts election candidates hit campaign trail on first day of early voting

Milford teens befriend boy with autism sitting alone: "I feel really happy he felt included"

Milford teens befriend boy with autism sitting alone: "I feel really happy he felt included"

Next Weather: WBZ Evening Update for Oct. 17

Next Weather: WBZ Evening Update for Oct. 17

No Kings protests held on first day of early voting in Massachusetts

No Kings protests held on first day of early voting in Massachusetts

2 women were hospitalized after shooting in Boston, police say

2 women were hospitalized after shooting in Boston, police say

Boston Rodeo brings Wild West to the Seaport

Boston Rodeo brings Wild West to the Seaport

Boston Book Festival features independent bookstore Papercuts Bookshop

Boston Book Festival features independent bookstore Papercuts Bookshop

Next Weather: WBZ morning forecast for October 17, 2026

Next Weather: WBZ morning forecast for October 17, 2026

Next Weather: WBZ Update

Next Weather: WBZ Update

Dozens of Fall River firefighters honored for bravery at Gabriel House fire

Dozens of Fall River firefighters honored for bravery at Gabriel House fire

Suspicious letters sent to political offices in Massachusetts

Suspicious letters sent to political offices in Massachusetts

Mass. high school senior undergoes revolutionary spinal procedure to play football

Mass. high school senior undergoes revolutionary spinal procedure to play football

Massachusetts representatives, state officials receive letters with unknown substances

Massachusetts representatives, state officials receive letters with unknown substances

Roxbury nonprofit celebrates 25 years of changing lives with music

Roxbury nonprofit celebrates 25 years of changing lives with music

FBI agent shares disturbing messages between Matthew Farwell and Sandra Birchmore before her death

FBI agent shares disturbing messages between Matthew Farwell and Sandra Birchmore before her death

Triple stabbing survivor calls for more mental health resources in Boston

Triple stabbing survivor calls for more mental health resources in Boston

Next Weather: WBZ evening forecast for October 16, 2026

Next Weather: WBZ evening forecast for October 16, 2026

Next Weather: WBZ midday forecast for Oct. 16, 2026

Next Weather: WBZ midday forecast for Oct. 16, 2026

FBI agent testifies about Sandra Birchmore’s phone data in Matthew Farwell trial

FBI agent testifies about Sandra Birchmore’s phone data in Matthew Farwell trial

Rowers brave rainy start to the Head of the Charles regatta

Rowers brave rainy start to the Head of the Charles regatta

Weekend To Do List: Boston Book Festival, spooky Saturday, fungi foraging

Weekend To Do List: Boston Book Festival, spooky Saturday, fungi foraging

"Diary of a Wimpy Kid" author Jeff Kinney on "Fight or Flight" and "The Getaway" movie

"Diary of a Wimpy Kid" author Jeff Kinney on "Fight or Flight" and "The Getaway" movie

Sweater Weather Film Festival at City Hall Plaza

Sweater Weather Film Festival at City Hall Plaza

Next Weather: WBZ morning forecast for Oct. 16, 2026

Next Weather: WBZ morning forecast for Oct. 16, 2026

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