Research published today from the University of California, Irvine, shows that workers without email access work better, are more satisfied with their jobs and hare more engaged than those with constant access to email. The research also showed a significant lessening of the stress hormone cortisol in the systems of the non-email users. Horror of horrors they also got more exercise by getting up and talking to people at nearby desks. For some time we have said that electronic communication increases stress (and reduces trust). This is a nice confirmation.