Flickering light mobilizes brain chemistry that may fight Alzheimer’s

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dementianews
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Flickering light mobilizes brain chemistry that may fight Alzheimer's
Researcher Annabelle Singer models an experimental visor and earphones that play 40 Hertz light and sound. The current study was performed on mice. The pictured device is in human testing as a possible Alzheimer’s treatment. Results from those tests are to be published in later studies separate from the current study in mice. Credit: Georgia Tech / Allison Carter

For over a century, Alzheimer’s disease has confounded all attempts to treat it. But in recent years, perplexing experiments using flickering light have shown promise.

Now, researchers have tapped into how the flicker may work. They discovered in the lab that the exposure to light pulsing at 40 hertz—40 beats per second—causes brains to…

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