As a postgrad student I often worked from home. It meant I never got away from it. Now I deliberately don't have an internet connection at home or a smart phone, so when I leave work I am offline. Much better!

This 58% can't be believed. I started doing the survey this is based on and aborted half way. The question on what may be wrong with your work space was compulsory but the only allowable options were of problems. There was no "none of the above option" and I am happy with my work space. So you either lie and make up some problem that doesn't exist just to finish the survey or else you abort it: so only those with complaints will finish the survey.