It is often recommended that people should get at least eight hours of sleep per night to live to their healthiest, tomorrow. Eight? Why such a ridiculous number as eight? Eight hours of sleep personally has had varying effects, from me being so tired as to fall asleep during the day, to being completely and totally alive. Most Americans disregard this anyway, choosing to get a lower number of hours of sleep.
Also, what is the point of sleeping eight hours as opposed to more or less? One only remembers the dream that they had in the last 20-45 minutes anyhow, and for each person a truly optimal amount of sleep can vary. Some people can do just fine on four to six hours, some need ten to twelve. Why eight then?
America is interesting when the most widespread medical "knowledge" is a fact that for most people, not optimal. Instead of learning how to judge something about oneself for oneself, sheeple are given the "fact" that "they" "need" eight hours of sleep to remain healthy. Not the deadliest American common sense, but a damned annoying one. If I look tired, it's not because I didn't get eight hours of sleep, it's because I'm tired. So until you magically figure out my optimal sleep per night, shut the fuck up and go on about your business.