We know that not sleeping for days, or sleeping significantly less per day than 8h, doesn’t cause any serious problems in healthy adults.
Maybe if you do something simple. I experience serious mental impairment on the whole next day even if I sleep 7 hours (in the sense of not being able to get on with reading math or thinking as fast and productive/deep as after good sleep). This isn’t about sleepiness, as I can be perfectly alert, just dumber (there’s also coffee that helps with sleepiness but not with thought). This is probably too fine a point to have been adequately researched.
There has been plenty of research, complete with assigning numbers to the expected IQ drop. From what I recall, acute sleep deprivation has been found to lower measured IQ for up to a week.
(This is without the sleep effects that are particular to modafinil, as opposed to other stimulants such as caffeine or amphetamine.)
If people will forgive me not digging up the details likepage number & citation & metrics, I recall that the big USAF study on modafinil and sleep deprivation found that mental performance on modafinil did begin declining during and past the first night, it just declined less than the alternatives.
I notice the same if I get an hour or two less than normal. It’s extremely obvious when I’m doing anything that is very cognitively demanding, even if I wouldn’t notice anything out of the normal other than a mild sense of malaise if I were watching TV or doing easy cognitive tasks.
I have a similar result, except I’ve never experienced a stimulant effects from anything other than blood sugar I’m not certain I can discount sleepiness. Also, I suffer from a migraine condition which has a much more severe affect on my mental faculties on a day-to-day basis.
And since improper sleeping is one of my triggers—“Happiness is getting enough sleep.” Not too much, not too little.
Maybe if you do something simple. I experience serious mental impairment on the whole next day even if I sleep 7 hours (in the sense of not being able to get on with reading math or thinking as fast and productive/deep as after good sleep). This isn’t about sleepiness, as I can be perfectly alert, just dumber (there’s also coffee that helps with sleepiness but not with thought). This is probably too fine a point to have been adequately researched.
There has been plenty of research, complete with assigning numbers to the expected IQ drop. From what I recall, acute sleep deprivation has been found to lower measured IQ for up to a week.
(This is without the sleep effects that are particular to modafinil, as opposed to other stimulants such as caffeine or amphetamine.)
If people will forgive me not digging up the details likepage number & citation & metrics, I recall that the big USAF study on modafinil and sleep deprivation found that mental performance on modafinil did begin declining during and past the first night, it just declined less than the alternatives.
I notice the same if I get an hour or two less than normal. It’s extremely obvious when I’m doing anything that is very cognitively demanding, even if I wouldn’t notice anything out of the normal other than a mild sense of malaise if I were watching TV or doing easy cognitive tasks.
I have a similar result, except I’ve never experienced a stimulant effects from anything other than blood sugar I’m not certain I can discount sleepiness. Also, I suffer from a migraine condition which has a much more severe affect on my mental faculties on a day-to-day basis.
And since improper sleeping is one of my triggers—“Happiness is getting enough sleep.” Not too much, not too little.