I've noticed that I have increased EHS symptoms when playing computer games on my laptop and was wondering if anyone happened to know what might be going on in terms of EMF's that is causing this problem? I can tolerate the desktop screen however when I play computer games I noticed that I have EHS related symptoms and trying to figure out what might be going on.
Well, increased usage of a computer is more likely to cause someone symptoms. You could have increased hard disk usage, increased network activity (if it's an online game), increased CPU usage. We've had some people here actually throttle their CPU to make their computer more tolerable.
On May 3, bonty [via ES] <[hidden email]> wrote:
> I've noticed that I have increased EHS symptoms when playing computer
> games on my laptop and was wondering if anyone happened to know what
> might be going on in terms of EMF's that is causing this problem?
Maybe the video card causes more emissions since it's working harder. Do all video games do it, or just the 3D first person ones that hog resources? Do you have the issue with video games on an Android tablet/phone?
It only happens with certain games, I can tolerate FIFA 06 (soccer games) but not grand theft auto san andreas (third person shooter). I didn't know that shooters used more resources and I'm starting to wonder if the video card is part of the problem as well. Sounds like it is.
I don't have an android phone so not sure about that, can't tolerate screen on modern day smart phones so only use older model phones from 2012-2013. I avoid tablet/smartphone screens. I used to own one of those brick button phones with a small screen and seemed to be ok but didn't play games on it.
Just trying to think on how to resolve the video card problem, do video cards have more emissions than others? Forgive my ignorance but I'm not sure where video cards are located in laptops, would it be connected to the screen somehow? It feels like my symptoms are worse from the screen itself.
I use an old Macbook Pro. Definitely not recommended for EHS people, but I've found a way to make it work by using an external mouse, keyboard, and monitor and keeping the actual laptop far away from me. I can use it all day this way. The magnetic field of the laptop is around 2-3mG (milligauss) at idle. Once the CPU gets more involved when playing games the reading can jump as high as 20mG and I start to feel ill very quickly. Consider that some EHS people are sensitive to a fraction of a milligauss. Magnetic field strength drops off quickly with distance so the solution is to just get away from the laptop. If your laptop isn't grounded (look for 3-prong plug) then you are exposing yourself to its high electric field as well. There is a way to ground a laptop through its USB port to deal with this, but the magnetic field will be unchanged.
The tricky part can be finding a monitor that you can tolerate. I use a 20" ViewSonic with an anti-flicker screen. Smaller then I'd like and the motion blur can be terrible, but the power consumption is low and it never bothers me. I have a very similar version of that monitor that's two inches larger and I can tolerate it for 2-4 hours only.
Thanks for your information. I'm glad you told me about the connection between CPU and magnetic radiation, I didn't know that this happened when playing games. I will have to try and find a tolerable screen but not sure where to start, maybe flicker screen as you said and look at Viewsonic range with a smaller sized screen. Also I might try an old LCD TV and run an optical video cable from a laptop or something. I think the TV would have to be at least 60 hz refresh rate to work properly as a computer?
Have tried playing games on battery but still have symptoms plus the battery dies pretty quick. My battery charger is a grounded one (three prong cord).
I saw your other post about looking for lower EMF laptop. There are some models listed at this link along with some other ideas that may be useful. I don't know if they'll be powerful enough to run what you play though. There's a lot of valuable info on this site and it's worth your time to look through it.
As far as monitors I personally do better with LED screens over LCD. My older LCD monitor ran at around 50 watts, while LED monitors can run at much lower wattage. My current monitor is under 10 watts. I find flicker-free displays help with eyestrain so I try to stick with those. I use the program f.lux to lower HEV blue light which also helps. ViewSonic, Asus, BenQ make them, I think a few others too. An old LCD TV could work since we tend to sit further away from TV's. Just depends on your particular sensitivity.
Thanks for your info and link flux. Would be worth trying his smaller screen laptops from his list at emfanalysis.
Can I ask what model your monitor is by any chance? Didn't know the flicker free LED's had lower power consumption, that's interesting. Old Lcd TVs are usually good for me as I sit far away from them so its an option if I have no luck with the monitors.
I use a ViewSonic VA2055SM. The Asus and BenQ monitors around this price range are a bit nicer if you can tolerate them. The reason I use this specific model is because it's the only 20" flicker-free monitor I could find. For whatever reason I have not been able to tolerate anything larger than this for very long. Asus makes a 15.6" if you need to go smaller.
LED monitors use less power than LCD regardless of flicker. Most LED monitors use PWM dimming (pulse width modulation) meaning the LED's are flashing at high speeds. I get terrible eyestrain looking at these monitors. Flicker-free monitors use DC dimming (direct current) so the LEDs are at a constant light level. My eyes may get fatigued after awhile, but they never strain and hurt now.
On May 12, bonty [via ES] <[hidden email]> wrote:
> Can I ask what model your monitor is by any chance? Didn't know the
> flicker free LED's had lower power consumption, that's interesting. Old
> Lcd TVs are usually good for me as I sit far away from them so its an
> option if I have no luck with the monitors.
LED backlights have lower power consumption than fluorescent backlights. With or without the "flicker-free" part. :-)
Finding a flicker-free computer monitor is pretty easy. However, finding a TELEVISION SET that has a flicker free LED backlight is much harder. I know that Sony had at least a few models that had this. But we're also talking about screen sizes that are at least 40" diagonal for this.