GYM & TONIC

The first boxing mouthguard was invented after someone bit their own pride.

✗ FAKE
Mouthguards in boxing were developed in the early 20th century. Dentist Woolf Krause is credited with early versions around 1890, and the purpose was to protect teeth and jaws.

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The first boxing mouthguard was invented after someone bit their own pride. | SmartAss Facts