Being in a house or box with 40 Hz flashing light for one hour seems to prevent dementia, including Alzheimer's disease. Ginkgo biloba extract supplements and maple syrup have also been shown to prevent dementia, including Alzheimer's disease.

It seems that being in a house or box with 40Hz flashing light for 1 hour can help prevent dementia including Alzheimer's disease.

https://www.google.com/search?q=1%E6%99%82%E9%96%93%E3%80%8140Hz%E3%81%AE%E5%85%89%E3%81% AE%E7%82%B9%E6%BB%85%E3%81%99%E3%82%8B%E5%AE%B6%E3%82%84%E7%AE%B1%E3%81%AE% E4%B8%AD%E3%81%A7%E3%82%A2%E3%83%AB%E3%83%84%E3%83%8F%E3%82%A4%E3%83%9E%E3% 83%BC%E3%82%92%E5%90%AB%E3%82%80%E7%97%B4%E5%91%86%E7%97%87%E4%BA%88%E9%98% B2&sxsrf=ALiCzsYlvpR2fABaqqeb_uB6ZcRaQl-ujw%3A1659143988263&ei=NIfkYsvYD42EmAXaooDQDQ&ved=0ahUKEwjLwrSAuZ_5AhUNAqYKHVoRANoQ4dUDCA4&uact=5&oq=1%E6%99%82%E9%96%93%E3%80%8140Hz%E3%81%AE%E5%85%89%E3%81% AE%E7%82%B9%E6%BB%85%E3%81%99%E3%82%8B%E5%AE%B6%E3%82%84%E7%AE%B1%E3%81%AE% E4%B8%AD%E3%81%A7%E3%82%A2%E3%83%AB%E3%83%84%E3%83%8F%E3%82%A4%E3%83%9E%E3% 83%BC%E3%82%92%E5%90%AB%E3%82%80%E7%97%B4%E5%91%86%E7%97%87%E4%BA%88%E9%98% B2&gs_lp=Egdnd3Mtd2l6uAED-AEBwgIHEAAYRxiwA5AGCkjNO1CpBVj_J3ABeAHIAQCQAQCYAWGgAaYOqgECMjHiAwQgQRgA4gMEIEYYAIgGAQ&sclient=gws-wiz

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It was announced that a component extracted from natural maple syrup may prevent the aggregation of beta amyloid and tau peptide (one of the causes of Alzheimer's disease is the combination of these two substances). It is said that there is abnormal aggregation).

https://job.kiracare.jp/note/article/1069/#:~:text=%E5%A4%A9%E7%84%B6%E3%83%A1%E3%83%BC%E3%83 %97%E3%83%AB%E3%82%B7%E3%83%AD%E3%83%83%E3%83%97%E3%81%8B%E3%82%89%E6%8A%BD %E5%87%BA,%E3%81%82%E3%82%8B%E3%81%A8%E3%81%84%E3%82%8F%E3%82%8C%E3%81%A6% E3%81%84%E3%81%BE%E3%81%99%EF%BC%89%E3%80%82

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Also, in a Chinese study, cognitive impairment and dementia, multiple studies involving a total of 2561 subjects were analyzed and investigated . It has been shown that it may be possible to prevent or delay functional decline [4].

https://info.ninchisho.net/archives/28764#:~:text=%E3%81%BE%E3%81%9F%E3%80%81%E4%B8%AD%E5%9B%BD% E3%81%AE%E7%A0%94%E7%A9%B6%E3%81%A7,%E3%81%95%E3%82%8C%E3%81%BE%E3%81%97%E3 %81%9F%5B4%5D%E3%80%82