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Alzheimer’s disease (AD) is a degenerative cognition-declining disease with no clear understanding of the underlying mechanisms. Currently, no effective therapeutics are available for AD. Amyloid-β (A-β) plaques and tau tangles were considered as the contributing factors to the development of AD. In contrast, controversial exists due to efforts focusing on A-β as a pharmacological therapeutic target was failed. Emerging evidence appeared for the external stimuli applied through vision (LED) and hearing (~40Hz) to certain intensity to dementia subjects with promising results such as reducing A-β and tau tangles in the brain tissue, increasing the brain volume reducing the decline of daily activities and mental status. This optogenetic and sound-derived digital therapeutic maneuver provides a striking way for conquering the development of AD.