We humans are programmed, like a lot of animals, to be up in the day and sleep at night. When the sun is high the sky is blue. When we see blue light our brains manufacture cortisol to keep us awake. When it’s dark, our pineal gland in our brain makes melatonin to make us sleepy.
What color light comes from laptop screens, smart phones and tablets? Blue.
Get a better night’s sleep and keep those things off when you get into bed.
Better sleep, better day after.
So true! Here’s another pro-tip, resist the urge to check the clock if you wake during the night. Trust your alarm clock and stop checking the clock! It may take a week or two to break the habit – but once you do, your sleep will become far less interrupted.
I agree we should take care to guard our sleep and follow recommendations. However, I can’t help thinking about all those nights I spent as a nurse at the hospital, working the 11-7 shift and trying desperately to catch a few winks here and there while taking care of my infant son during the daytime hours. Many folks have no choice but to go against their natural biological clocks due to their professions. I can’t help wondering about the negative effects this may have had on my health.