Shining light directly into areas of the brain damaged in Alzheimer's may reverse the the course of the disease, scientists believe.
Researchers are trialling a headset mounted with LEDs that beams pulses of gamma waves into the hippocampus, the region responsible for memory.
The daily treatment is said to boost mitochondria – the cell's batteries, which sweep away toxic proteins that build up in the brains of patients.
A 12-week trial into its effectiveness has just begun after early results saw patients regain their memory, as well as reading and writing skills, in three months.
With no known Alzheimer's cure in sight, the headset offers a ray of hope for around 850,000 sufferers in Britain and nearly six million in the US.
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