![](https://miro.medium.com/v2/resize:fit:2592/1*8zywzYXXwVBhhBSov7jc_w.jpeg)
![](https://miro.medium.com/v2/resize:fit:700/1*UJcFxG7EUQj2oUPjVf2U0g.png)
![](https://miro.medium.com/v2/resize:fit:25/1*0bTajNFrWUHF61rUGPgNdw.png)
![](https://miro.medium.com/v2/resize:fit:160/1*ZZDYG7ZVkf7ZREZJyXfMnA.png)
Your screen is blue and slowly killing you.
A f.luxable poem
by Matthew Lew.
They say sitting is the new smoking,
and extremely dangerous when you’re working.
But there’s another problem out there,
that isn’t about your posture or the shape of your chair.
Have you ever noticed at night,
when your cellphone shines bright,
an eerie glow of baby blue,
does not match the room’s warm hue?
![](https://miro.medium.com/v2/resize:fit:160/1*6p5vSIWJjXA1wN5eJKpCOw.png)
That’s because your screen is calibrated to natural daylight,
and does not match your room’s warm incandescent nightlight.
It’s difficult to get good sleep,
when twelve o’clock slowly creeps.
![](https://miro.medium.com/v2/resize:fit:160/1*zCFnlZCXTqsNdpJTngKUJA.png)
With just two hours of constant screen exposure,
it will delay your ability to slumber. (full disclosure)
Everyone knows the eye has rods and cones.
But we’ve discovered cells sensitive to blue light — making deep sleep prone.
![](https://miro.medium.com/v2/resize:fit:268/1*g5Ye55rwVk4rT585rsc7cA.png)
Melanopsin is a photopigment in the retina,
when exposed to blue daylight, will not stop your body’s stamina.
But the lack of light produces your body’s drowsy melatonin
that will keep yourself asleep until next mornin’.
![](https://miro.medium.com/v2/resize:fit:160/1*zSoSMsQ9D0MZki4lzGWpQQ.png)
A free plugin called f.lux™ adjusts the screen’s color temperature,
that works on Mac/PC/Linux so our eyes are not strained by the hour.
![](https://miro.medium.com/v2/resize:fit:557/1*e-E0F7fpQu27VQwVQ48FIQ.png)
You can tell f.lux the ambient lighting conditions you are in,
and your location that syncs the sunrises and sunsets within.
Make sure you follow developers @herf and @lorna by supporting them,
and share this with your friends with a recommend.
![](https://miro.medium.com/v2/resize:fit:40/1*hABQrwdUX0RxhLJemdO8rA.png)