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A comment on Improving deep sleep may prevent dementia, study finds. Parent comment

Re:Improving deep sleep may prevent dementia, study finds by mattgreenrocks on Wednesday November 01, 2023 @10:59AM (#38099070)
FWIW, my Apple Watch's reports of deep sleep line up with my Zeo (EEG)'s numbers from awhile ago.
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Re:Improving deep sleep may prevent dementia, study finds by inerte on Wednesday November 01, 2023 @07:35PM (#38106926)
This guy over here https://youtu.be/BQMIAkt4P48?si=XQY6jLLKFpS4wkzv is always testing fitness / sleep devices and he compares to better machines that are known to more precise. The latest Apple Watches do pretty well overall.
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