Ben Greenfield Fitness: Diet, Fat Loss And Performance

Do you ever get headaches after working on a computer for a long time? Eye strain? Mild irritation? Brain fog? It's not all in your head. See, just like most televisions, computer monitors "flicker".  Monitors have been flickering for many years, but most people don't realize this because the flicker is invisible. However, the flicker is still very hard on your eyes and is just one of the computer monitor issues responsible for the growing epidemic of near-sightedness and myopia - also known as "computer vision syndrome". Even fancy, modern PC LCD monitors are not flicker-free, even though many people think they are. These LCD monitors originally started out by using something called CCFL (cold cathode fluorescent lamps) as a backlight source for the monitor, but in recent years manufacturers have shifted to using LEDs (light emitting diodes). If you have one of those thin monitors, then you probably have a LCD monitor with LED, and if you are unsure, you can check the model number on the backside of the moni