Card says REM sleep behavior disorder is due to REM sleep atonia. This is incorrect. RSBD is due to the lack of REM sleep atonia.
Source 1
https://www.mayoclinic.org/diseases-conditions/rem-sleep-behavior-disorder/symptoms-causes/syc-20352920#:~:text=With%20REM%20sleep%20behavior%20disorder,or%20several%20times%20a%20night.
"With REM sleep behavior disorder, instead of experiencing the normal temporary paralysis of your arms and legs (atonia) during REM sleep, you physically act out your dreams."
Source 2
https://stanfordhealthcare.org/medical-conditions/sleep/nighttime-sleep-behaviors/rem-behavior-disorder.html
"...this may be called REM sleep muscle paralysis or muscle atonia. This is considered a normal function of REM sleep. REM behavior disorder occurs when the body maintains relatively increased muscle tone during REM sleep, allowing the sleeper to move and act out their dreams. "
This card also contradicts two other cards
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