If the work requires constant interaction with the monitor (typing, viewing information, data entry) with attention and concentration, it is recommended to organize breaks for 10 to 15 minutes every 45 to 60 minutes. They are needed to reduce the neuro-emotional stress and eliminate the effects of hypodynamia (insufficient muscle activity). Someone from the staff can walk along the corridor or go outside, do exercises or sit in a chair in the recreation room. Yes what to say, sometimes a simple opportunity to get up, go to the window or pour a cup of tea is working well: and after 5 minutes with new forces a person returns for work.
If the work requires constant interaction with the monitor (typing, viewing information, data entry) with attention and concentration, it is recommended to organize breaks for 10 to 15 minutes every 45 to 60 minutes. They are needed to reduce the neuro-emotional stress and eliminate the effects of hypodynamia (insufficient muscle activity). Someone from the staff can walk along the corridor or go outside, do exercises or sit in a chair in the recreation room. Yes what to say, sometimes a simple opportunity to get up, go to the window or pour a cup of tea is working well: and after 5 minutes with new forces a person returns for work.
If the work requires constant use of PC like report writing, preparation of PPT, literature survey, indenting, correspondence or anything like that I may sit in front of the PC for almost 7 hours.
If I am engaged with Lab work I hardly spend , i.e., one hour with PC.
Since I do theoretical work, the computer is the most important device for me. I use it about 10-12 hours a day and sometimes I let it calculate something (what does not need my attention) over night.
It depends on the kind of work. But I set small goals and as I reach them I allow myself a small break. Usually I do something else which allows me to be away from the computer and relax.
It depends on the importance of your academic present mission, means some time it takes only 2 hours and in other urgent cases it may be reached to 10 hours per day.
Depending on the nature of the work and the tasks assigned to you
My work as a scientific assistant requires communication with the emails of the ministry and the presidency of the university as well as scientific departments and student affairs, this takes most of the time on the computer.
After I got my Ph.D in Computer Science, I have a vitamin D deficiency due to the large hours that I spent in front of my computer. My advise is after every 2 hours of work go out to get vitamin D from Sun (10 minutes) move and return to your computer.
Working on computer as per the program & of interesting career progressive development computer certainly helps in our performance however it is suggesting that it may give the strength to our eye & it is practicable that whatever interest of your mind & result on computer one must take a rest after two n half hrs & if we desire to complete the process of our performance we must keep minimum time gap more than 30 minutes .This is my personal opinion