How to avoid a headache which monitor gives you

How to avoid a headache which monitor gives you
Most people are surprised when they hear their monitor flickers. They don’t ever realize their monitors hurt their eyes and give them headaches due to low refresh frequency.
The refresh rate is the number of times a display\'s image is repainted or refreshed per second. The refresh rate is expressed in hertz so a refresh rate of 75 means the image is refreshed 75 times in a second. The refresh rate for each display depends on the video
card used.The bigger the refresh rate number, the less flicker you see on the CRT’s screen. As a rule of thumb, higher refresh rates are less likely to cause eyestrain.