Checking email less frequently reduces stress, according to psychologists at the University of British Columbia.
They instructed half of the study’s 124 adults, including students, financial analysts and medical professionals, to limit checking their email to three times daily for a week, while telling the other half to check email as often as they did before the study. Then the researchers reversed the instructions for the two groups during a subsequent week. The researchers found that during the limited email use week, participants experienced significantly lower daily stress than during the unlimited email use week. Lower stress, in turn, predicted higher well-being on a diverse range of well-being outcomes. These findings highlight the benefits of checking email less frequently for reducing psychological stress.
You can read the full research on Computer in Human Behavior book.