A new research says that checking e-mails at work can take off almost ten years of your working life.
People are so addicted to the e-mail system that they can't control the urge to log on.
According to the study by Scottish IT training company, responding to an e-mail every five minutes clocks up a staggering 8.5 hours a week given the "recovery" time required after each interruption - adding up to 9.7 years of a working life.
Howard Teale, general manager at Indicia Training, said the problem lies in an inability to switch between e-mailing and work.
"Stopping to check e-mail ten times a day requires a lot of brain switching so when it comes to getting sidetracked, e-mail is a major culprit," the Scotsman quoted Teale as saying.
Experts have warned of a growing addiction to technology.
"There are some people who, for instance, get up in the middle of the night and on their way to the toilet have to stop off to check their e-mail.
"Like any addiction, it is the subconscious looking for something that will settle their anxiety and give them something to do," said Dr Michael Reddy, psychologist and director of Human Potential Accounting.
"The problem with e-mail addiction is that, unlike with alcohol or gambling, you cannot remove the need to use a computer and communicate via e-mail from a person's working life," he added.