It is believed during sleep the body rids itself of debri in the brain, such as amyloid. But is amyloid debri "toxic" or just harmless waste material taking up space? Could be the amyloid generation is the body's reaction to something else that is toxic (cough protein misfolding, ROS, RNS)? I suppose the mere taking up of space by amyloid could in itself not be a good thing even if the amyloid isn't toxic per se.
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