> Have I 'caught-up'? Or does catching up mean negating long-term side-effects of sleep deprivation? This is the issue, and it's why the person who titled this

> Have I 'caught-up'? Or does catching up mean negating long-term side-effects of sleep deprivation? This is the issue, and it's why the person who titled this article ought to be ashamed. We know sleep-deprived people sleep extra if you let them, in amounts predicted by their sleep deprivation. We know the recovery sleep produces better results on a bunch of metrics than getting ~8 hours without extra recovery time. We also know that they don't make up lost sleep hours one-to-one; they add a few hours over a few days then return to baseline, and the fraction recovered declines as the amount of deprivation rises. So.. what does all of that mean? I know my athletic performance responds to recovery sleep; I've seen studies saying cognitive performance does too. Does insulin sensitivity recover fully? (The author's past work finds "sorta".) Does that recovery provide a better baseline when deprivation starts again, or does it just shift to a new target level regardless? (This implies it just moves to the lower level.) How about the same two questions for memory? For muscle and aerobic exercise? And then: does time with recovered functioning correct long-term damage, mitigate it, or just stop worsening it? Is the short-term "elevated amyloid plaque levels" result actually tied to Alzheimer's, or do they just share a mechanism? Summarizing a one-weekend insulin sensitivity result as though it settles 50 different questions sharing a broad label is ridiculous.