computer and health

  Today's world computers become daily needs, siting too long in front computers will give you big health issues like bad vision i can prove it i grow up with computer game and after hours and hours online game only one year my vision from 5.0 to 3.2. electromagnetic radiations are like x-ray if you take too much of them if will kill your body cell slowly and weakness you physical body  ionization pollute air from those computer fan when your computer been use from hours and computer start heating up and those rare metals will slowly melt and the fan start run and care out the heat and negative ion. if you had too much negative ion it will make you moral illness mostly it make you super tried and weakness your body. one of my teacher told as about this himalayan rock salt lamp, it says on their website works as an air purifier by emitting negative ions into the air and light therapy to reduce stress and increase energy. long time uses computer you will absorb negative ions and negative ions can weak you cells and make you tired. like ionic fan but not really sure how salt lamp work the some way. my personal idea for health and computer are every 2 hours after computer take 15 minutes break and go to workout for 45 minutes every day.  sweating can help you reject negative ions out your body and 15 minutes break can help refresh you eyes.  

                                                                       (from google)