Electrical brain stimulation may help stroke survivors recover speech and language skills more quickly, according to a study in the American Heart Association journal Stroke.

Stroke patients treated with non-invasive brain stimulation along with speech therapy had three times the improvement in speech and language compared with patients who had speech therapy without stimulation treatment. 

The premise of brain stimulation is similar to physical therapy where the working limb is splinted so the affected limb has to do the work. In this case, the researchers shut down the working part of the brain.

More trials need to be conducted, but researchers said the stimulation is probably most effective early, within about five weeks after a stroke.

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