Sleep is the great rejuvinator. When you get good sleep, you feel generally much better when you wake up. Your body does repair functions, your brain works out (some issues). And occasionally you dream.
Going without sleep ages people, makes them less productive as they are more tired during the day. It limits the repair functionality. It hinders the “work through problems”. It prevents dreams.
Pulling all-nighters is one instance of doing without sleep. This is a voluntary effort.
But what if your efforts were non-voluntary? What if your lack of restful sleep was prolonged for, I dunno, 20+ years.
I have a severe case of Obstructive Sleep Apnea (OSA). I’ve had it for a while … my wife diagnosed it perfectly, some years ago, after reading the symptoms and comparing to her observations. I didn’t believe her.
Word to the wise. Listen to the boss lady.
I’ve not been getting good sleep for a while. Years … no … decades. I used to attribute it to one of my other oh-so-enjoyable maladies. In this particular instance, one is awakened to the nasty sensation of your vocal cords and esophagus burning, choking and inability to breath a highly acidic slurry … Yeah, that, kidney stones, and Gout are all things I have that I really don’t wish on anyone.
So this happened on the 3rd, on one of my systems Feb 3 03:02:39 calculon kernel: [195271.041118] INFO: task kworker/20:2:757 blocked for more than 120 seconds. Feb 3 03:02:39 calculon kernel: [195271.048116] Not tainted 4.20.6.nlytiq #1 Feb 3 03:02:39 calculon kernel: [195271.052678] “echo 0 > /proc/sys/kernel/hung_task_timeout_secs” disables this message. Feb 3 03:02:39 calculon kernel: [195271.060626] … Read moreData loss, thanks to buggy driver or hardware