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Key Points
A viral at-home dementia test has been making the rounds on TikTok.
The test uses a sequence of three hand movements to tap into different parts of brain function.
A neuropsychologist explains what it means for your brain health if you flub the test.
While flipping through TikTok last week, one video caught my eye. “The quickest test for dementia,” read the caption on a clip of a neurologist, @adnanmd, making a series of hand gestures.
Reminiscent of rock-paper-scissors, the test asks you to quickly transition through three separate hand movements—fist, edge, palm—and repeat the sequence. According to the video, which has…
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