Computer and heath

when I start to use computer more and more I feel my head always is lean ahead as walking, therefor I just know aware that my heath has already injuried by incorrectly using computer ,so interview the doctor and she adviced me :

if you follow the tips given below and in the websites below then your computing experience will be so much better. And another problem that people may not be aware of is the isolation computers can cause, you tend to ignore the rest of family and disassociate yourself from them whilst on the computer. Breakups are becoming commoner because of computers, so divide you attentions, dont give it all to the computer.Some tips to followTake regular breaks from the computer, it is recommended that you take a break at least every 20 - 35 mins. And follow this with 5 mins of stretching and movement, the body will start to stiffen up and ache because of the inactivity.When using a computer you need to be comfortable, and using a natural posture. For more on posture visit here, or try here and here for more postures.the classic upright posture is not always best. The reclined posture is the most comfortable, but may not suit you.The placement of your computer monitor can be another cause of discomfort. You should be looking directly at the monitor, and not glancing sideways with your body twisted. It is recommended your head is slightly higher than the screen, so you are looking down (for more help and information see here. Most monitors are tiltable, the back of the monitor should be lower than the front.Glare from the monitor is another problem, anit-glare screens can be bought that fit most screens. Adjustment of contrast and brightness will help. Avoid having windows or bright lights in front of you, while looking at a monitor. Avoid reflections of light on the monitor screen from behind. Your eyes are at risk from eye strain and tiredness.Try to use the keyboard more than the mouse, one side of your body goes numb or aches. For a listing of usefull keystroke commands go here. If in any doubt, seek medical advice first, go and see your doctor. These tips are provided only as guidelines, and you may already have an illness or problem that might be aggravated further by using a computer.