A non-invasive technique for electrical stimulation of the brain has been found to produce a striking improvement in the short-term memory of older people, when finely tuned to the individual’s neural characteristics. Naomi Rovnick discusses the research with Clive Cookson, the FT’s science editor.

Contributors: Suzanne Blumsom, executive editor, Naomi Rovnick, FT Live reporter and Clive Cookson, science editor. Producer: Fiona Symon

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