>A new study published in the journal PLoS ONE has reported on the first human tests of an experimental therapy using sound and light to treat Alzheimer's disease (AD). The initial findings are promising, with the unique treatment leading to some neurological and cognitive improvements, but the small trial size means more study is needed before anyone can say this type of therapy works.

The following submission statement was provided by /u/Apart_Shock:

>A new study published in the journal PLoS ONE has reported on the first human tests of an experimental therapy using sound and light to treat Alzheimer's disease (AD). The initial findings are promising, with the unique treatment leading to some neurological and cognitive improvements, but the small trial size means more study is needed before anyone can say this type of therapy works.

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/zma2rw/first_human_trials_test_light_sound_therapy_for/j09weic/

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Does anyone know how they came to find that 40hz was the magic number for healing?

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This is a fascinating therapy concept. I hope it continues to deliver positive results and this becomes a great noninvasive therapy for these diseases.

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Doesn't say in the article but I wouldn't be surprised to find it provides benefit irregardless of Alzheimers

The rationale is that it's within the range of gamma oscillations, which are apparently disrupted in a mouse model of Alzheimer's disease. In Martorell... Tsai 2019 Cell paper they tested 8,40 and 80Hz and 40Hz worked the best. I'm skeptical of this whole thing but who knows...