February 2013
Intermediate to advanced
216 pages
4h 10m
English
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GETTING DEEPER: SLEEP PSYCHOLOGY
The following sleep study demonstrates the psychological aspect of sleep. In this sleep study, subjects from similar backgrounds were divided into three groups. They were removed from anything that they could use to check the time or that would give them any indication of how much time had passed, including clocks, light and temperature change.
The first group was told that they would sleep for eight hours. The second group was informed that they would be sleep-deprived and only allowed to sleep for six hours. The third group was told that they would sleep for 10 hours. The group that only slept for six hours complained of sleepiness, irritability and impaired concentration. The group that slept for 10 hours complained ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.