Sleep Definition and 159 Threads

Does anyone know any ways af drastically cutting down the amount of sleep one needs?

Ok, I want to ask this. I'll try to keep it as adult as I can. Why is it that after most males have an orgasm, that they are very tired and find it easy to sleep afterwords? This is true for me. From what I think I've read, the sympathetic nervous system is "active" during the build-up to...

Off the top of my head, the only things I can think of that would make sleep necessary is building up reserves of ATP and using energy towards rebuilding tissue that wouldn't be available during the day. But it seems that there has to be more, otherwise you could just eat a lot of carbohydrates...

Why do you people all get to go to sleep, and I am getting ready to go to work :frown: [zz)] no fair..

I'm combining two things into one here: (1) How does over-sleep and lack of sleep affect the mind? Concerning lack of sleep I'm sort of wondering if the conscious mind and subconscious can work together so to speak? The reason being is one day I was doing notes in class. I was taking notes...

Is there any study showing that sleeping too little for a period of time, say a few months, lowers a person's IQ ?

Does blankly staring at a computer screen for hours without moving count as sleep? :wink: If not, I really should go to sleep now 3 am, signing off

http://news.bbc.co.uk/2/hi/health/3112170.stm

Why do I feel happy when I awake from sleep sometimes? Why do I feel like I was hit by a train and feel sick sometimes? What are the factors?