I can not see this at all. I think it is too negative and that they did not do the correct research but then again I may be being negative on it all.
Poor sleep affects everything you do. The human body needs the rest period in order to function efficiently, even though I do believe I read something about 8 hours not being optimal. What's more important is ensuring that you get enough cycles of REM (Need more than 6 hours, thats for sure). There are diseases that prevent people from ever sleeping, and it is very often fatal.
I figure I will sleep when I am pushing daisies up with my toes. Until then if I sleep 3 or 5 hours I am happy. There a nights I get less than 3 others I get 5 to 6. But seldom do I get more than 7.
Three to five hours. Ouch. I need at least 7 hours or I'm not a happy camper. I guess old folks don't need as much sleep *wink*.
I like a minimum of six but I can make do with a lot less. My optimum is between seven and eight but I rarely get that.
Oh geesh thanks Kyrroeth. I wish I was able to get more but some memories do not allow my to sleep and haunt my nightmares. So if I am able to sleep I do. I can tell you it sucks at times as I feel I am a zombie at times.
Losing sleep over climate change. A new study of US data suggests a sleep-deprived planet by century's end. Researchers show that unusually warm nights can harm human sleep and that the poor and elderly are most affected. Rising temperatures will make sleep loss more severe. Ref. Source 5n.