It’s Time to Learn What ‘Core Sleep’ Actually Is
or EEG. (That’s the thing where they attach wires to your head). Scientists recognize three stages of non-REM sleep, with the ...
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Your Sleep Quality Matters. Here's How to Know if You’re Getting Enough
Light sleep is broken down into stages 1 and 2. The first stage is simply the act of transitioning from being awake to being asleep. It makes up less than 3% of your nightly sleep cycles.