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Why office workers can't sleep and why that's bad

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Re: Why office workers can't sleep and why that's bad

#71

Post by iamtheworstdev »

La1n wrote: post #52
C1sc0cat wrote: post #33

Interesting however there is data going back to the 1920's about changing lighting at work (Taylor I think) that shows that the very fact of changing light levels improved output. However when the changed the lighting levels back output improved again. It looks to me this is based on poorly designed studies, the including of trigger words like "kids" "iPad" is a bit of a red flag.

I could also be the change itself and not the final state that causes it, or not?

That's one of the conclusions. People assumed the changes lighting meant they were being monitored or watched in some way, so they performed better.

Re: Why office workers can't sleep and why that's bad

#72

Post by Dylan16807 »

imgabe wrote: post #70
Dylan16807 wrote: post #68

Earlier quoted context omitted.

> 0.9 - 1.1 watts per square foot So with LEDs, one and a half 60 watt equivalents per square meter? That's pretty bright. If I'm doing my math right that's enough for 1000 lux.

I'm not sure how you're calculating that, but if you're just looking at the lumen output of the bulb, the lighting level is measured at the work surface. In an office, that's at 3' off the floor and the light is at the ceiling which is at 8'-10'. Lighting intensity decreases with the square of distance, so if you have 1000 lux right next to the bulb, you're going to have considerably less 5' - 7' away. Add to that th…

> Lighting intensity decreases with the square of distance, so if you have 1000 lux right next to the bulb, you're going to have considerably less 5' - 7' away.

But you're in the range of square-of-distance bulbs. An array of lights on a ceiling gives approximately the same lighting as if you had a uniformly glowing ceiling and all the light went exactly down.

You'd be outputting a good amount more than 1000 lumens per square meter of ceiling. Most of that hits the work surface of the same size, so you get 1000 lumens per square meter, which is 1000 lux.

> some sort of lens that is going to reduce the light output somewhat

A lens shouldn't reduce it by much if it's doing its job.

> Even 1000 lux is nowhere close to being outside on a sunny day which is more like 100,000 lux.

Yeah but it's a lot more than 300! If there's a problem it's probably not caused by energy rules.

Re: Why office workers can't sleep and why that's bad

#73

Post by asdff »

nucleardog wrote: post #15
aussieguy1234 wrote: post #4

This study mentions blue light as from smartphones as a problem. My phone has a blue light filter which I have on all the time. Linux gnome desktop also has one for late night coding sessions.

You can solve this globally by getting eye glasses that filter blue light as long as you're not doing any sort of colour-sensitive work. After a day or two you don't notice the colour difference anymore.

But then you have to wear indoor glasses which is no fun. Light shift is baked into MacoOS, iOS, and Windows at this point, so there is no excuse to fall victim to these instagram adverts selling these cheap glasses.

Re: Why office workers can't sleep and why that's bad

#74

Post by asdff »

graeme wrote: post #6

Has anyone tested bright indoor lighting and its effect on their own sleep. I have some LED studio lights for video work by my desk all the time. I'm wondering if I should just turn them on while I work each morning. From what I can tell: 1. LEDs won't cause sunburn/skin damage 2. There's no blue light risk of them if they're not rates above a certain level of light output and you don't stare directly at them. I have…

In college I lived in a windowless room for a year. I would have to get a light on a timer to flick on when I wanted to wake up, or else I'd wake up completely delirious at like 1-2pm rather than around 9am. I eventually switched to a full spectrum bulb and that helped with waking up a lot.

Re: Why office workers can't sleep and why that's bad

#75

Post by tsss »

MaximumYComb wrote: post #29
wrnr wrote: post #28

I've had insomnia for as long as I can remember and wish there was another culture about sleep. I saw this documentary about the Institute of Advanced Study (IAS) wherein a physicist was staying awake for 48 hours so he can focus on his work. The IAS is famous for hiring the best scientists and letting them work on whatever they want. I am not a genius like him but I wish I could use my restlessness to my advantage a…

I had medically diagnosed insomnia for a period. If your insomnia is anything like mine then you'd have a decent idea about if you're going to sleep that night or not. If it's 1am and I'm still wide awake then I'm not getting quality sleep that night. What do you have to lose by going to your PC at that time and working for 6 hours before work? You're going to be tired tomorrow anyway any attempting to sleep for anot…

I'm not getting paid for those 6 hours so why should I work?
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