Research brief: Brush with care

In some people with epilepsy, teeth brushing can trigger a seizure, say US scientists. The claim follows a study of three adults with epilepsy who experience seizures while brushing their teeth. Magnetic-resonance imaging suggested the rhythmic action of tooth brushing may overexcite the somatosensory area of the brain (Neurology 2007; 68: 769–71).

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