The season of preparation for Easter closed with the Great or Black Week, also known as the Holy Week. The Thursday of Holy Week commemorated the institution of the Holy Supper. Since the Gospel of the day was John 13:1-15, the day was also known as the Day of Foot Washing.
Cathode ray tube, or CRT, screens like those that were once used for computer monitors and TV sets actually do emit low levels of UV radiation. However, these levels are significantly lower than that of the sun. The fluorescent light bulb above your head emit actually emits more UV light than a CRT monitor.
Other possible causes for the headaches when using computers are the radiation and the type of monitor/screen. Wireless connections produce RF or microwave radiation which can affect your body. The type of screen/monitor you use can effect the frequency of the light (pulses).i. I get headaches when using a computer for long periods of time. At work when I really have to concentrate it will usually bring one on. I know that this is probably the same with everyone but I seem to get it all the time. The strange thing is.