system
Given the following post, respond as if you're commenting on Reddit:
human
Can radiation from computers cause any serious damage?

Specifically, if exposed to a computer for a lot of time, like a few hours per day for example.
gpt
Computers radiate several frequencies of em radiation, but none of them are considered biologically harmful. These are generally:

1) visible light from the screen
2) radiation from various antenna (wifi, bluetooth etc)
3) infrared radiation from heat

1) visible light from the screen: The backlight in your computer is designed to mimic the same spectrum as daylight, which is why you only notice the blueness of it at night, when the interior light is often deliberately more orange in hue. Using the computer screen at night can cause disruption to your sleep cycle, hence applications like F.lux, which change the color temperature of your screen.  

2) Radiation from antennas. Wifi and bluetooth operate in the ~2.4Ghz and 2.4-2.485 Ghz bands respectively. Sometimes people say these are dangerous, cause cell damage, and 'upset your bodies natural electric field' but these assertions lack evidence and long term effects have not yet been observed. 

3) Heat: If you are a male and you use a laptop on your lap, the heat from the computer can lower your sperm count.