Photo by: R29
Lights Off
"People do sleep better and longer in a completely blacked-out room," says Dr. Arand. That's because our bodies are very attuned to the light/dark cycle, a holdover from our caveman ancestors. Before electricity, our bodies learned when it was time to be awake and active and when it was time to sleep based on the sun.
"There are sensors in the eye that monitor the amount of light around you, and they trigger the ...
more Photo by: R29
Lights Off
"People do sleep better and longer in a completely blacked-out room," says Dr. Arand. That's because our bodies are very attuned to the light/dark cycle, a holdover from our caveman ancestors. Before electricity, our bodies learned when it was time to be awake and active and when it was time to sleep based on the sun.
"There are sensors in the eye that monitor the amount of light around you, and they trigger the circadian clock to say 'yes, it's light out, you should be alert,' or 'it's dark out, turn down the activity system' so we start to wind down. If you have light in your room while you're trying to sleep, you are giving your brain mixed signals." Dr. Arand says that having a computer screen on while in bed can actually reset you circadian clock, causing your brain to not register that it's nighttime and leaving you all hyped up and unable to fall asleep. So, once again for the slow learners: Shut. It. Down.
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