Digital Smarts - Why is Working on a Computer All Day So Exhausting?

It is uncertain why working on a computer all day long is so physically exhausting, although studies point to a couple of possibilities, writes Brian Resnick for Vox. One hypothesis is that the mental energy used sitting still in front of a computer has a draining effect on our bodies. Another theory suggests that tension caused by being drawn to the things we want to do (scrolling Instagram or reading blogs, for instance), rather than the things we have to do could is the cause of fatigue, and could very well explain the struggle of trying to get homework done!