Flashing lights offer hope for Alzheimers cure

Flashing lights offer hope for a radical new non-drug treatment for Alzheimer’s disease, according to research at Massachusetts Institute of Technology. It found that flickering at a frequency of 40 times per second induced brain waves that helped clear toxic proteins in a study on mice. John Murray-Brown talks to Clive Cookson, the FT's science editor, about the breakthrough.

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